CVE-2021-30157

Advisory lineage Upstream: 0 Downstream: 3
Modified
Published: 06 Apr 2021, 06:43
Last modified:03 Aug 2024, 22:24

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
6.1 MEDIUM
v3.1 (nvd)
EPSS Score
0.73% LOW
1% probability -0.27%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

06 Apr 2021, 06:43
Published
Vulnerability first disclosed
03 Aug 2024, 22:24
Last Modified
Vulnerability information updated

Description

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On ChangesList special pages such as Special:RecentChanges and Special:Watchlist, some of the rcfilters-filter-* label messages are output in HTML unescaped, leading to XSS.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • v2.0•MEDIUM•Score: 4.3AV:N/AC:M/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.73%• Percentile: 73%

Techniques & Countermeasures

  • CWE-79•Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

    The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Affected Systems

  • debian•debian_linux

    10.0

  • fedoraproject•fedora

    33 | 34

  • mediawiki•mediawiki

    < 1.31.12 | ≥ 1.32.0, < 1.35.2

References (5)