CVE-2026-115350

EUVD-2026-108419
Mistune before 3.3.0 contains a cross-site scripting vulnerability in the Include directive that emits included .html, .xhtml, or .htm file content as raw block_html tokens. Attackers who can plant an HTML file readable by the renderer can reference it via an include directive, combined with path traversal, to execute stored scripts when escape=False is set.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
Debian logo
Debian Releases
Debian Product
Codename
mistune
bookworm
vulnerable
forky
vulnerable
sid
3.4.0-1
fixed
trixie
vulnerable
Common Weakness Enumeration
References
https://github.com/lepture/mistune/security/advisories/GHSA-96vr-jm8v-g22j
https://www.vulncheck.com/advisories/mistune-before-3.3.0-stored-xss-via-include-directive-html-files