VDB
CVE-2021-23974
CVE-2021-23974
PUBLISHED
The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.
EPSS 0.26% · 49.2th percentile
Risk Scores
EPSS Score
0.26%
49.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | mozjs52 | 52.9.1-1build1, 0, 52.9.1-1ubuntu3 |
| Ubuntu:20.04:LTS | firefox | 82.0+build2-0ubuntu0.20.04.1, *, * |
| Ubuntu:18.04:LTS | mozjs52 | 0, 52.8.1-0ubuntu0.18.04.1, 52.9.1-0ubuntu0.18.04.1 |
| Ubuntu:18.04:LTS | firefox | 81.0.2+build1-0ubuntu0.18.04.1, 82.0+build2-0ubuntu0.18.04.1, * |
| Ubuntu:16.04:LTS | firefox | *, *, 0 |
| Ubuntu:20.04:LTS | mozjs68 | 68.6.0-1ubuntu1, 0, 68.5.0-1~fakesync |
| Ubuntu:18.04:LTS | mozjs38 | 0, 38.8.0~repack1-0ubuntu4, 38.8.0~repack1-0ubuntu3 |
| Ubuntu:22.04:LTS | mozjs78 | 0, 78.13.0-1, 78.15.0-2 |
Timeline
- Feb 26, 2021 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Dec 27, 2021 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
- Nov 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-23974 third-party-advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-07/#CVE-2021-23974 third-party-advisory
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1528997%2C1683627 third-party-advisory
- https://www.mozilla.org/security/advisories/mfsa2021-07/ third-party-advisory
- https://ubuntu.com/security/notices/USN-4756-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-23974 third-party-advisory