CVE-2024-47845: the wikimedia foundation mediawiki - css extension Improper Encoding or Escaping of Output
Vulnerability summary
CVE-2024-47845 is a high (CVSS 8.2) Improper Encoding or Escaping of Output vulnerability in the wikimedia foundation mediawiki - css extension. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 33.8% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 05-10-2024PublishedVulnerability first disclosed.
- 07-10-2024Last modifiedVulnerability information updated.
Description
Improper Encoding or Escaping of Output vulnerability in The Wikimedia Foundation Mediawiki - CSS Extension allows Code Injection.This issue affects Mediawiki - CSS Extension: from 1.39.X before 1.39.9, from 1.41.X before 1.41.3, from 1.42.X before 1.42.2.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
34%
Versus all other CVEs
30-day change
0.00 pp
From 0.41% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (phabricator.wikimedia.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
The wikimedia foundation1 product
- mediawiki - css extension≥ 1.39.x, < 1.39.9 | ≥ 1.41.x, < 1.41.3 | ≥ 1.42.x, < 1.42.2
Wikimedia1 product
- wikimedia-extensions-css≥ 1.39.0, < 1.39.9 | ≥ 1.41.0, < 1.41.3 | ≥ 1.42.0, < 1.42.2
2 vendors · 2 products