CVE-2021-45038: mediawiki
CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2021-45038DEBIAN-CVE-2021-45038
Published 17-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45038 is a medium (CVSS 5.3) vulnerability in mediawiki. EPSS estimates a 1.40% chance of exploitation in the next 30 days, higher than 72% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (NVD)EPSS score
1.40%
0%100%
Low · +0.05 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 17-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. By using an action=rollback query, attackers can view private wiki contents.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.40%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
+0.05 pp
From 1.35% on 20-09-2026
20-09-202620-10-2026
EPSS score1.40%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian1 product
- mediawiki< 1:1.35.5-1
Mediawiki1 product
- mediawiki< 1.35.5 | ≥ 1.36.0, < 1.36.3 | ≥ 1.37.0, < 1.37.1
Ubuntu1 product
- mediawiki< 1:1.35.5-1
3 vendors · 3 products
References
7 links- www.mediawiki.org/wiki/2021-12_security_release/FAQVendor Advisory
- security.gentoo.org/glsa/202305-24Vendor Advisory
