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Status published
Medium
CVE-2020-6816
In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean...
Vulnerability Description
In Mozilla Bleach before 3.12, a mutation XSS in bleach.clean when RCDATA and either svg or math tags are whitelisted and the keyword argument strip=False.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743
- https://www.checkmarx.com/blog/vulnerabilities-discovered-in-mozilla-bleach
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EDQU2SZLZMSSACCBUBJ6NOSRNNBDYFW5/
- https://advisory.checkmarx.net/advisory/CX-2020-4277
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Affected Vendor
Affected Software
Mozilla Bleach
Vulnerable Versions:
<=3.11
Timeline
Official Publish:
March 24th, 2020
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.