showdown - Stored XSS via Unescaped Table Header ID Attribute Injection

Publishers link these advisories through the identifiers shown below. A shared identifier or date alone does not tell you whether your software is affected or whether the advisories describe the same cause.

CVE-2026-59710 · CVE overview and exploitation status

EUVD-2026-41954

GHSA-22g5-r2x5-97cx

cve-program · CVE-2026-59710

• https://github.com/showdownjs/showdown/issues/1046
• https://github.com/showdownjs/showdown
• https://github.com/showdownjs/showdown/commit/e5cab1e9a5dcea2bb3cbf888863fa7e65ab37edf
• https://www.vulncheck.com/advisories/showdown-stored-xss-via-unescaped-table-header-id-attribute-injection

euvd · EUVD-2026-41954

• https://github.com/showdownjs/showdown/issues/1046
• https://github.com/showdownjs/showdown
• https://github.com/showdownjs/showdown/commit/e5cab1e9a5dcea2bb3cbf888863fa7e65ab37edf
• https://www.vulncheck.com/advisories/showdown-stored-xss-via-unescaped-table-header-id-attribute-injection

nvd · CVE-2026-59710

• https://github.com/showdownjs/showdown
• https://github.com/showdownjs/showdown/commit/e5cab1e9a5dcea2bb3cbf888863fa7e65ab37edf
• https://github.com/showdownjs/showdown/issues/1046
• https://www.vulncheck.com/advisories/showdown-stored-xss-via-unescaped-table-header-id-attribute-injection

osv · GHSA-22g5-r2x5-97cx

• https://nvd.nist.gov/vuln/detail/CVE-2026-59710
• https://github.com/showdownjs/showdown/issues/1046
• https://github.com/showdownjs/showdown/commit/e5cab1e9a5dcea2bb3cbf888863fa7e65ab37edf
• https://github.com/showdownjs/showdown
• https://www.vulncheck.com/advisories/showdown-stored-xss-via-unescaped-table-header-id-attribute-injection

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