GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2023-2836 (GCVE-0-2023-2836)

Vulnerability from cvelistv5 – Published: 2023-05-31 03:36 – Updated: 2026-04-08 17:28
VLAI
Title
CRM Perks Forms <= 1.1.1 - Authenticated (Admin+) Stored Cross-Site Scripting
Summary
The CRM Perks Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form settings in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
Severity
4.4 (Medium)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-05 18:29 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version CPE status
crmperks CRM Perks Forms – WordPress Form Builder Affected: 0 , ≤ 1.1.1 (semver)
guessed Create a notification for this product.
Credits
Dongzhu Li
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T06:33:05.663Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://plugins.trac.wordpress.org/changeset/2917582/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-2836",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-05T18:29:54.905023Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-02-05T19:44:33.382Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CRM Perks Forms \u2013 WordPress Form Builder",
          "vendor": "crmperks",
          "versions": [
            {
              "lessThanOrEqual": "1.1.1",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Dongzhu Li"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The CRM Perks Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form settings in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-08T17:28:14.146Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve"
        },
        {
          "url": "https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/2917582/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2023-05-30T00:00:00.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "CRM Perks Forms \u003c= 1.1.1 - Authenticated (Admin+) Stored Cross-Site Scripting"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2023-2836",
    "datePublished": "2023-05-31T03:36:11.324Z",
    "dateReserved": "2023-05-22T12:59:57.087Z",
    "dateUpdated": "2026-04-08T17:28:14.146Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2023-2836",
      "date": "2026-09-16",
      "epss": "0.00599",
      "percentile": "0.47082"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:crmperks:crm_perks_forms:*:*:*:*:*:wordpress:*:*\", \"versionEndIncluding\": \"1.1.1\", \"matchCriteriaId\": \"D91E5E06-32E2-4A81-8759-7CBFD63ECFD7\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"The CRM Perks Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form settings in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.\"}, {\"lang\": \"es\", \"value\": \"El plugin CRM Perks Forms para WordPress es vulnerable a Cross-Site Scripting Almacenado a trav\\u00e9s de la configuraci\\u00f3n de formularios en versiones hasta la v1.1.1 inclusive debido a la insuficiente sanitizaci\\u00f3n de entrada y escape de salida. Esto hace posible que atacantes autenticados, con permisos de nivel de administrador y superiores, inyecten scripts web arbitrarios en p\\u00e1ginas que se ejecutar\\u00e1n cada vez que un usuario acceda a una p\\u00e1gina inyectada. Esto s\\u00f3lo afecta a las instalaciones mutisitio y a las instalaciones en las que se ha deshabilitado \\\"unfiltered _html\\\". \"}]",
      "id": "CVE-2023-2836",
      "lastModified": "2024-11-21T07:59:23.180",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"security@wordfence.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N\", \"baseScore\": 4.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"HIGH\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.3, \"impactScore\": 2.7}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N\", \"baseScore\": 4.8, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 1.7, \"impactScore\": 2.7}]}",
      "published": "2023-05-31T04:15:10.200",
      "references": "[{\"url\": \"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\", \"source\": \"security@wordfence.com\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/2917582/\", \"source\": \"security@wordfence.com\", \"tags\": [\"Patch\"]}, {\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\", \"source\": \"security@wordfence.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Exploit\", \"Third Party Advisory\"]}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/2917582/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Patch\"]}, {\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "security@wordfence.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-79\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-2836\",\"sourceIdentifier\":\"security@wordfence.com\",\"published\":\"2023-05-31T04:15:10.200\",\"lastModified\":\"2026-06-17T05:53:34.913\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The CRM Perks Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form settings in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.\"},{\"lang\":\"es\",\"value\":\"El plugin CRM Perks Forms para WordPress es vulnerable a Cross-Site Scripting Almacenado a trav\u00e9s de la configuraci\u00f3n de formularios en versiones hasta la v1.1.1 inclusive debido a la insuficiente sanitizaci\u00f3n de entrada y escape de salida. Esto hace posible que atacantes autenticados, con permisos de nivel de administrador y superiores, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada. Esto s\u00f3lo afecta a las instalaciones mutisitio y a las instalaciones en las que se ha deshabilitado \\\"unfiltered _html\\\". \"}],\"affected\":[{\"source\":\"security@wordfence.com\",\"affectedData\":[{\"vendor\":\"crmperks\",\"product\":\"CRM Perks Forms \u2013 WordPress Form Builder\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThanOrEqual\":\"1.1.1\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N\",\"baseScore\":4.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.3,\"impactScore\":2.7},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N\",\"baseScore\":4.8,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"REQUIRED\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":1.7,\"impactScore\":2.7}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2025-02-05T18:29:54.905023Z\",\"id\":\"CVE-2023-2836\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security@wordfence.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:crmperks:crm_perks_forms:*:*:*:*:*:wordpress:*:*\",\"versionEndIncluding\":\"1.1.1\",\"matchCriteriaId\":\"D91E5E06-32E2-4A81-8759-7CBFD63ECFD7\"}]}]}],\"references\":[{\"url\":\"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\",\"source\":\"security@wordfence.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://plugins.trac.wordpress.org/changeset/2917582/\",\"source\":\"security@wordfence.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\",\"source\":\"security@wordfence.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"https://plugins.trac.wordpress.org/changeset/2917582/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "current_release_date": "2026-04-08T19:38:12+00:00",
      "cve": "CVE-2023-2836",
      "id": "CVE-2023-2836",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "CRM Perks Forms \u003c= 1.1.1 - Authenticated (Admin+) Stored Cross-Site Scripting",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-2836.json",
      "version": "3"
    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/2917582/\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T06:33:05.663Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2023-2836\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-02-05T18:29:54.905023Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-02-05T18:29:56.187Z\"}}], \"cna\": {\"title\": \"CRM Perks Forms \u003c= 1.1.1 - Authenticated (Admin+) Stored Cross-Site Scripting\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Dongzhu Li\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 4.4, \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N\"}}], \"affected\": [{\"vendor\": \"crmperks\", \"product\": \"CRM Perks Forms \\u2013 WordPress Form Builder\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.1.1\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2023-05-30T00:00:00.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/de11636b-a051-4e76-bc26-ed76f66fe0df?source=cve\"}, {\"url\": \"https://github.com/Don-H50/wp-vul/blob/main/CPF-xss-exploit.md\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset/2917582/\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The CRM Perks Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via form settings in versions up to, and including, 1.1.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-04-08T17:28:14.146Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2023-2836\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-04-08T17:28:14.146Z\", \"dateReserved\": \"2023-05-22T12:59:57.087Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2023-05-31T03:36:11.324Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.