vulnerability
Ubuntu: (CVE-2020-6816): python-bleach vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:P/A:N) | Mar 24, 2020 | Jun 26, 2025 | Aug 18, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
Mar 24, 2020
Added
Jun 26, 2025
Modified
Aug 18, 2025
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.
Solution
no-fix-ubuntu-package
References
- CVE-2020-6816
- https://attackerkb.com/topics/CVE-2020-6816
- CWE-79
- URL-https://bugzilla.mozilla.org/show_bug.cgi?id=1621692
- URL-https://github.com/mozilla/bleach/commit/175f67740e7951e1d80cefb7831e6c3e4efeb986
- URL-https://github.com/mozilla/bleach/security/advisories/GHSA-m6xf-fq7q-8743
- URL-https://www.cve.org/CVERecord?id=CVE-2020-6816
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