Vulnerability-Lookup

FKIE_CVE-2021-34641

Vulnerability from fkie_nvd - Published: 2021-08-16 19:15 - Updated: 2026-06-17 03:56

Severity

6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Summary

The SEOPress WordPress plugin is vulnerable to Stored Cross-Site-Scripting via the processPut function found in the ~/src/Actions/Api/TitleDescriptionMeta.php file which allows authenticated attackers to inject arbitrary web scripts, in versions 5.0.0 - 5.0.3.

References

URL	Tags
security@wordfence.com	https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78	Exploit, Third Party Advisory
security@wordfence.com	https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78	Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/	Exploit, Third Party Advisory

Impacted products

	Vendor	Product	Version
	seopress	seopress	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "SEOPress",
          "vendor": "SEOPress",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.0"
            },
            {
              "status": "affected",
              "version": "5.0.1"
            },
            {
              "status": "affected",
              "version": "5.0.2"
            },
            {
              "status": "affected",
              "version": "5.0.3"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:seopress:seopress:*:*:*:*:*:wordpress:*:*",
              "matchCriteriaId": "032D1D24-9DBE-4CBD-A169-83DD6D513235",
              "versionEndExcluding": "5.0.4",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The SEOPress WordPress plugin is vulnerable to Stored Cross-Site-Scripting via the processPut function found in the ~/src/Actions/Api/TitleDescriptionMeta.php file which allows authenticated attackers to inject arbitrary web scripts, in versions 5.0.0 - 5.0.3."
    },
    {
      "lang": "es",
      "value": "El plugin SEOPress de WordPress, es vulnerable a un ataque de tipo Cross-Site-Scripting Almacenado por medio de la funci\u00f3n processPut encontrada en el archivo ~/src/Actions/Api/TitleDescriptionMeta.php que permite a atacantes autenticados inyectar scripts web arbitrario, en las versiones 5.0.0 - 5.0.3."
    }
  ],
  "id": "CVE-2021-34641",
  "lastModified": "2026-06-17T03:56:17.093",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 3.5,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 6.8,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2021-34641",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-05-05T18:16:18.220668Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2021-08-16T19:15:14.317",
  "references": [
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78"
    },
    {
      "source": "security@wordfence.com",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "url": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2021-34641 (GCVE-0-2021-34641)

Vulnerability from cvelistv5 – Published: 2021-08-16 18:47 – Updated: 2025-05-05 18:16

Title

SEOPress <= 5.0.0 – 5.0.3 Authenticated Stored Cross-Site Scripting

Summary

Severity

6.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/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 2025-05-05 18:16 UTC

CWE

CWE-79 - Cross-site Scripting (XSS)

Assigner

Wordfence mitre root Scorecard

References

2 references

URL	Tags
https://www.wordfence.com/blog/2021/08/xss-vulner…	x_refsource_MISC
https://plugins.trac.wordpress.org/browser/wp-seo…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SEOPress	SEOPress	Affected: 5.0.0 Affected: 5.0.1 Affected: 5.0.2 Affected: 5.0.3

Date Public

2021-08-16 00:00

Credits

Chloe Chamberland, Wordfence

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:19:47.922Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-34641",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-05-05T18:16:18.220668Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-05-05T18:16:21.403Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SEOPress",
          "vendor": "SEOPress",
          "versions": [
            {
              "status": "affected",
              "version": "5.0.0"
            },
            {
              "status": "affected",
              "version": "5.0.1"
            },
            {
              "status": "affected",
              "version": "5.0.2"
            },
            {
              "status": "affected",
              "version": "5.0.3"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Chloe Chamberland, Wordfence"
        }
      ],
      "datePublic": "2021-08-16T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "The SEOPress WordPress plugin is vulnerable to Stored Cross-Site-Scripting via the processPut function found in the ~/src/Actions/Api/TitleDescriptionMeta.php file which allows authenticated attackers to inject arbitrary web scripts, in versions 5.0.0 - 5.0.3."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Cross-site Scripting (XSS)",
              "lang": "en",
              "type": "CWE"
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-08-16T18:47:57.000Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Update plugin to version 5.0.4 or newer."
        }
      ],
      "source": {
        "discovery": "INTERNAL"
      },
      "title": "SEOPress \u003c= 5.0.0 \u2013 5.0.3 Authenticated Stored Cross-Site Scripting",
      "x_generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "AKA": "Wordfence",
          "ASSIGNER": "security@wordfence.com",
          "DATE_PUBLIC": "2021-08-16T15:33:00.000Z",
          "ID": "CVE-2021-34641",
          "STATE": "PUBLIC",
          "TITLE": "SEOPress \u003c= 5.0.0 \u2013 5.0.3 Authenticated Stored Cross-Site Scripting"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SEOPress",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "=",
                            "version_name": "5.0.0",
                            "version_value": "5.0.0"
                          },
                          {
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                            "version_name": "5.0.1",
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                            "version_value": "5.0.2"
                          },
                          {
                            "version_affected": "=",
                            "version_name": "5.0.3",
                            "version_value": "5.0.3"
                          }
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                      }
                    }
                  ]
                },
                "vendor_name": "SEOPress"
              }
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        },
        "credit": [
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            "lang": "eng",
            "value": "Chloe Chamberland, Wordfence"
          }
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        "impact": {
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            "baseSeverity": "MEDIUM",
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        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/",
              "refsource": "MISC",
              "url": "https://www.wordfence.com/blog/2021/08/xss-vulnerability-patched-in-seopress-affects-100000-sites/"
            },
            {
              "name": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78",
              "refsource": "MISC",
              "url": "https://plugins.trac.wordpress.org/browser/wp-seopress/tags/5.0.4/src/Actions/Api/TitleDescriptionMeta.php#L78"
            }
          ]
        },
        "solution": [
          {
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            "value": "Update plugin to version 5.0.4 or newer."
          }
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        "source": {
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  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
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    "dateUpdated": "2025-05-05T18:16:21.403Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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.

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FKIE_CVE-2021-34641

CVE-2021-34641 (GCVE-0-2021-34641)

Tags

Sightings

Nomenclature

Related by attack behaviour