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ammonia: mXSS via MathML `annotation-xml` encoding strip

🗓️ 22 Oct 2026 14:06:10Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 19 Views

mXSS in ammonia via MathML `annotation-xml` encoding strip allows arbitrary JavaScript injection.

Related
Detection
Refs
Vulners
Node
OR
ammonia_projectammoniaRange4.1.0–4.1.3rust
ammonia_projectammoniaRange4.0.0–4.0.2rust
ammonia_projectammoniaRange<3.3.2rust

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22 Oct 2026 14:06Current
6.1Medium risk
Vulners AI Score6.1
CVSS 46.3
EPSS0.00555
SSVC
19