VULNRABLE / Vulnerability / CVE-2026-63670

CVE-2026-63670

MEDIUM LOW sanitize-html GHSA

Exploit verdict: No active-exploit signal

CVSS Score

5.5

Severity

MEDIUM

EPSS

Source

GHSA

Summary

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

What this means

CVE-2026-63670 is a medium-severity vulnerability affecting sanitize-html, rated CVSS 5.5. The EPSS model estimates a 0% probability of exploitation in the next 30 days. Published September 4, 2026.

View full advisory at GHSA →