Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Fri, 16 Oct 2026 00:30:00 +0000
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threat_severity
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cvssV3_1
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Thu, 15 Oct 2026 21:30:00 +0000
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ssvc
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Thu, 15 Oct 2026 18:30:00 +0000
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| Description | ammonia is a Rust library for repairing and securing untrusted HTML. Prior to 3.3.2, 4.0.2, and 4.1.3, applications that explicitly allow the math tag, annotation-xml, and at least one raw-text HTML element while disallowing the encoding attribute can permit mutation cross-site scripting. ammonia does not correctly implement annotation-xml's encoding-dependent MathML integration-point behavior after attribute filtering removes encoding, so the sanitizer validates a descendant under one namespace interpretation while the browser reparses the output under another. An attacker can use that namespace transition and an allowed raw-text HTML element to execute JavaScript when a user renders the sanitized output. The required tags are not enabled by default, so applications that do not explicitly allow them are not affected. This issue is fixed in versions 3.3.2, 4.0.2, and 4.1.3. | |
| Title | ammonia: mXSS in ammonia via MathML `annotation-xml` encoding strip | |
| Weaknesses | CWE-79 | |
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cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-10-15T20:25:49.464Z
Reserved: 2026-07-16T19:35:57.766Z
Link: CVE-2026-63430
Updated: 2026-10-15T20:24:30.314Z
Status : Awaiting Analysis
Published: 2026-10-15T19:17:42.367
Modified: 2026-10-16T16:00:33.533
Link: CVE-2026-63430
OpenCVE Enrichment
Updated: 2026-10-16T06:45:14Z