HIGHPyPI

JustHTML is vulnerable to XSS via code fence breakout in <pre> content

JustHTML is vulnerable to XSS via code fence breakout in <pre> content

CVE-2026-5389Published 5 months agoUpdated 2 days agoSource: OSV

Affected packages

  • justhtmlbefore 1.13.0

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
EPSS percentile

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

JustHTML is vulnerable to XSS via code fence breakout in <pre> content | HackTribune