CVE-2022-29969: mediawiki rss_for_mediawiki Cross-site Scripting
CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2022-29969
Published 02-05-2022Last modified 03-08-2024
Vulnerability summary
CVE-2022-29969 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in mediawiki rss_for_mediawiki. EPSS estimates a 0.71% chance of exploitation in the next 30 days, higher than 53% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
6.1/10
010
Medium · v3.1 (NVD)EPSS score
0.71%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 0 · Duplicates 1Timeline
- 02-05-2022PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
The RSS extension before 2022-04-29 for MediaWiki allows XSS via an rss element (if the feed is in $wgRSSUrlWhitelist and $wgRSSAllowLinkTag is true).
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 6.1Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NSourcesAll 2 agree
- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.71%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
0.00 pp
From 0.71% on 21-09-2026
21-09-202621-10-2026
EPSS score0.71%
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
Mediawiki1 product
- rss_for_mediawiki< 2022-04-29
Ubuntu1 product
- mediawikiAll versions (No fix recorded)
2 vendors · 2 products