CVE-2024-21686
Estado: ModificadaAlta (8.7)—
This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server.
This Stored XSS vulnerability, with a CVSS Score of 7.3, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires user interaction.
Atlassian recommends that Confluence Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions listed on this CVE
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See the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives).
This vulnerability was reported via our Bug Bounty program.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
- Puntuación base: 8.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.89%
- Percentil entre todas las CVEs puntuadas: 58
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-79
- CWE-79
Referencias
JSON original (NVD)
Mostrar
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"value": "This High severity Stored XSS vulnerability was introduced in versions 7.13 of Confluence Data Center and Server.\n\nThis Stored XSS vulnerability, with a CVSS Score of 7.3, allows an authenticated attacker to execute arbitrary HTML or JavaScript code on a victims browser which has high impact to confidentiality, high impact to integrity, no impact to availability, and requires user interaction.\n\nAtlassian recommends that Confluence Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions listed on this CVE\n\nSee the release notes (https://confluence.atlassian.com/doc/confluence-release-notes-327.html). You can download the latest version of Confluence Data Center and Server from the download center (https://www.atlassian.com/software/confluence/download-archives).\n\nThis vulnerability was reported via our Bug Bounty program."
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"value": "Esta vulnerabilidad XSS almacenado de alta gravedad se introdujo en las versiones 7.13 de Confluence Data Center y Server. Esta vulnerabilidad XSS almacenado, con una puntuación CVSS de 7,3, permite a un atacante autenticado ejecutar código HTML o JavaScript arbitrario en el navegador de una víctima, lo que tiene un alto impacto en la confidencialidad, un alto impacto en la integridad, ningún impacto en la disponibilidad y requiere la interacción del usuario. Atlassian recomienda que los clientes de Confluence Data Center y Server actualicen a la última versión; si no puede hacerlo, actualice su instancia a una de las versiones correctoras admitidas especificadas que se enumeran en este CVE. Consulte las notas de la versión (https://confluence.atlassian.es/doc/confluence-release-notes-327.html). Puede descargar la última versión de Confluence Data Center and Server desde el centro de descargas (https://www.atlassian.com/software/confluence/download-archives). Esta vulnerabilidad fue reportada a través de nuestro programa Bug Bounty."
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