CVE-2026-4765 (GCVE-0-2026-4765)

Vulnerability from cvelistv5 – Published: 2026-07-13 10:16 – Updated: 2026-07-13 13:14
VLAI
Title
Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas
Summary
Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the ‘name’ parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-79 - Improper neutralization of input during web page generation ('cross-site scripting')
Assigner
Impacted products
Vendor Product Version
RD Station Conversas Tallos Chat Affected: all versions
Create a notification for this product.
Date Public
2026-07-13 09:55
Credits
Leopoldo Angulo Gallego
Show details on NVD website

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4765",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-13T13:14:09.748715Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-13T13:14:19.490Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows",
            "MacOS",
            "Linux",
            "Android",
            "iOS"
          ],
          "product": "Tallos Chat",
          "vendor": "RD Station Conversas",
          "versions": [
            {
              "status": "affected",
              "version": "all versions"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:windows:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:macos:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:linux:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:android:*:*:*:*:*",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:ios:*:*:*:*:*",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ],
          "operator": "OR"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Leopoldo Angulo Gallego"
        }
      ],
      "datePublic": "2026-07-13T09:55:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application."
            }
          ],
          "value": "Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 5.1,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "LOW",
            "userInteraction": "ACTIVE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "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": "2026-07-13T10:16:33.027Z",
        "orgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516",
        "shortName": "INCIBE"
      },
      "references": [
        {
          "url": "https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas",
      "x_generator": {
        "engine": "Vulnogram 1.0.2"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "0cbda920-cd7f-484a-8e76-bf7f4b7f4516",
    "assignerShortName": "INCIBE",
    "cveId": "CVE-2026-4765",
    "datePublished": "2026-07-13T10:16:33.027Z",
    "dateReserved": "2026-03-24T11:45:47.723Z",
    "dateUpdated": "2026-07-13T13:14:19.490Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-4765",
      "date": "2026-07-14",
      "epss": "0.00272",
      "percentile": "0.1911"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-4765\",\"sourceIdentifier\":\"cve-coordination@incibe.es\",\"published\":\"2026-07-13T11:16:27.450\",\"lastModified\":\"2026-07-13T18:05:36.130\",\"vulnStatus\":\"Deferred\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \u2018name\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\"}],\"affected\":[{\"source\":\"cve-coordination@incibe.es\",\"affectedData\":[{\"vendor\":\"RD Station Conversas\",\"product\":\"Tallos Chat\",\"defaultStatus\":\"unaffected\",\"platforms\":[\"Windows\",\"MacOS\",\"Linux\",\"Android\",\"iOS\"],\"versions\":[{\"version\":\"all versions\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cve-coordination@incibe.es\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":5.1,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"ACTIVE\",\"vulnConfidentialityImpact\":\"NONE\",\"vulnIntegrityImpact\":\"NONE\",\"vulnAvailabilityImpact\":\"NONE\",\"subConfidentialityImpact\":\"LOW\",\"subIntegrityImpact\":\"LOW\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-13T13:14:09.748715Z\",\"id\":\"CVE-2026-4765\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cve-coordination@incibe.es\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-79\"}]}],\"references\":[{\"url\":\"https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas\",\"source\":\"cve-coordination@incibe.es\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-4765\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-13T13:14:09.748715Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-13T13:14:14.954Z\"}}], \"cna\": {\"title\": \"Stored Cross-Site Scripting (XSS) in Tallos Chat by RD Station Conversas\", \"source\": {\"discovery\": \"EXTERNAL\"}, \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"Leopoldo Angulo Gallego\"}], \"metrics\": [{\"format\": \"CVSS\", \"cvssV4_0\": {\"Safety\": \"NOT_DEFINED\", \"version\": \"4.0\", \"Recovery\": \"NOT_DEFINED\", \"baseScore\": 5.1, \"Automatable\": \"NOT_DEFINED\", \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"valueDensity\": \"NOT_DEFINED\", \"vectorString\": \"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N\", \"exploitMaturity\": \"NOT_DEFINED\", \"providerUrgency\": \"NOT_DEFINED\", \"userInteraction\": \"ACTIVE\", \"attackComplexity\": \"LOW\", \"attackRequirements\": \"NONE\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"LOW\", \"vulnIntegrityImpact\": \"NONE\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"NONE\", \"subConfidentialityImpact\": \"LOW\", \"vulnConfidentialityImpact\": \"NONE\", \"vulnerabilityResponseEffort\": \"NOT_DEFINED\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"RD Station Conversas\", \"product\": \"Tallos Chat\", \"versions\": [{\"status\": \"affected\", \"version\": \"all versions\"}], \"platforms\": [\"Windows\", \"MacOS\", \"Linux\", \"Android\", \"iOS\"], \"defaultStatus\": \"unaffected\"}], \"datePublic\": \"2026-07-13T09:55:00.000Z\", \"references\": [{\"url\": \"https://www.incibe.es/en/incibe-cert/notices/aviso/stored-cross-site-scripting-xss-tallos-chat-rd-station-conversas\"}], \"x_generator\": {\"engine\": \"Vulnogram 1.0.2\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \\u2018name\\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\", \"supportingMedia\": [{\"type\": \"text/html\", \"value\": \"Stored Cross-Site Scripting (XSS) vulnerability in the RD Station Conversas chat. The vulnerability resides in the \\u2018name\\u2019 parameter of the initialization process due to improper sanitization of user input. The vulnerability is not limited to self-exploitation: when a support agent joins the conversation, the malicious script also executes in their browser, increasing the impact. Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code within the context of the application.\", \"base64\": false}]}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79 Improper neutralization of input during web page generation (\u0027cross-site scripting\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:windows:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:macos:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:linux:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:android:*:*:*:*:*\", \"vulnerable\": true}, {\"criteria\": \"cpe:2.3:a:rd_station_conversas:tallos_chat:all_versions:*:ios:*:*:*:*:*\", \"vulnerable\": true}], \"operator\": \"OR\"}], \"operator\": \"OR\"}], \"providerMetadata\": {\"orgId\": \"0cbda920-cd7f-484a-8e76-bf7f4b7f4516\", \"shortName\": \"INCIBE\", \"dateUpdated\": \"2026-07-13T10:16:33.027Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-4765\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-13T13:14:19.490Z\", \"dateReserved\": \"2026-03-24T11:45:47.723Z\", \"assignerOrgId\": \"0cbda920-cd7f-484a-8e76-bf7f4b7f4516\", \"datePublished\": \"2026-07-13T10:16:33.027Z\", \"assignerShortName\": \"INCIBE\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.


Loading…

Loading…

Loading…

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.

Loading…

Detection rules are retrieved from Rulezet.

Loading…

Loading…