CVE-2021-23980
Publication date 16 February 2023
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in the default allowed tags and strip_comments defaults to True.
Status
Package | Ubuntu Release | Status |
---|---|---|
python-bleach | 24.10 oracular |
Needs evaluation
|
24.04 LTS noble |
Needs evaluation
|
|
22.04 LTS jammy |
Needs evaluation
|
|
20.04 LTS focal |
Needs evaluation
|
|
18.04 LTS bionic |
Needs evaluation
|
|
16.04 LTS xenial |
Needs evaluation
|
|
14.04 LTS trusty | Not in release |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 6.1 · Medium |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | Required |
Scope | Changed |
Confidentiality | Low |
Integrity impact | Low |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
References
Other references
- https://github.com/mozilla/bleach/security/advisories/GHSA-vv2x-vrpj-qqpq
- https://bugzilla.mozilla.org/show_bug.cgi?id=1689399
- https://github.com/mozilla/bleach/commit/79b7a3c5e56a09d1d323a5006afa59b56162eb13
- https://github.com/mozilla/bleach/commit/d398c89e54ced6b1039d3677689707456ba42dec
- https://www.cve.org/CVERecord?id=CVE-2021-23980