{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-14T09:12:54.610","vulnerabilities":[{"cve":{"id":"CVE-2020-26210","sourceIdentifier":"security-advisories@github.com","published":"2020-11-03T19:15:13.157","lastModified":"2024-11-21T05:19:31.920","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in version 0.30.4."},{"lang":"es","value":"En BookStack anterior a la versión 0.30.4, un usuario con permisos para editar una página podía agregar un enlace adjunto que ejecutaría código JavaScript no confiable cuando un visualizador de la página hiciera clic en él. El contenido peligroso puede permanecer en la base de datos después de esta actualización. Si cree que esto podría haber sido explotado, el aviso vinculado proporciona una consulta SQL para probar. Como solución alternativa, los permisos de edición de página podrían ser limitados solo para aquellos en los que se confía hasta que pueda actualizar, aunque esto no solucionará la explotación existente de esta vulnerabilidad. El problema se corrigió en la versión 0.30.4"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":1.3,"impactScore":5.8},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N","baseScore":8.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":2.3,"impactScore":5.8}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:S/C:N/I:P/A:N","baseScore":3.5,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"SINGLE","confidentialityImpact":"NONE","integrityImpact":"PARTIAL","availabilityImpact":"NONE"},"baseSeverity":"LOW","exploitabilityScore":6.8,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-79"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*","versionEndExcluding":"0.30.4","matchCriteriaId":"D6DF38A5-A44D-4308-933A-A1288591B880"}]}]}],"references":[{"url":"https://bookstackapp.com/blog/beta-release-v0-30-4/","source":"security-advisories@github.com","tags":["Exploit","Patch","Vendor Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/commit/349162ea139556b2d25e09e155cec84e21cc9227","source":"security-advisories@github.com","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/releases/tag/v0.30.4","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3h","source":"security-advisories@github.com","tags":["Exploit","Third Party Advisory"]},{"url":"https://bookstackapp.com/blog/beta-release-v0-30-4/","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Patch","Vendor Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/commit/349162ea139556b2d25e09e155cec84e21cc9227","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Patch","Third Party Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/releases/tag/v0.30.4","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]},{"url":"https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3h","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Exploit","Third Party Advisory"]}]}}]}