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CVE-2026-63670 ApostropheCMS: Mutation-XSS / allowedTags bypass via literal `</textarea/>` solidus close

🗓️ 17 Aug 2026 19:49:51Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 18 Views

ApostropheCMS sanitize-html allows Mutation-XSS via literal solidus after textarea end tag in allowedTags bypass.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-63670
17 Aug 202619:49
attackerkb
cve
CVE
CVE-2026-63670
17 Aug 202619:49
cve
euvd
EUVD
EUVD-2026-60440
17 Aug 202619:49
euvd
nvd
NVD
CVE-2026-63670
17 Aug 202620:16
nvd
ptsecurity
Positive Technologies
PT-2026-76771
17 Aug 202600:00
ptsecurity
[
  {
    "vendor": "apostrophecms",
    "product": "apostrophe",
    "versions": [
      {
        "version": "< 2.17.6",
        "status": "affected"
      }
    ]
  }
]

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