4.3

CVE-2023-45362: mediawiki

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-45362DEBIAN-CVE-2023-45362
Published 03-11-2023Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2023-45362 is a medium (CVSS 4.3) vulnerability in mediawiki. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 55.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.78%
0%100%
Low · +0.15 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 3
DLA-3671-1DSA-5520-1MGASA-2024-0155

Timeline

  1. 03-11-2023
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

An issue was discovered in DifferenceEngine.php in MediaWiki before 1.35.12, 1.36.x through 1.39.x before 1.39.5, and 1.40.x before 1.40.1. diff-multi-sameuser (aka "X intermediate revisions by the same user not shown") ignores username suppression. This is an information leak.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.78%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

+0.15 pp

From 0.63% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.78%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (phabricator.wikimedia.org)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Debian1 product
  • mediawiki< 1:1.39.5-1~deb12u1 | < 1:1.39.5-1
Mediawiki1 product
  • mediawikiEOL< 1.35.12 | ≥ 1.36.0, < 1.39.5 | 1.40.0 | 1.40.0:rc0
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)

3 vendors · 3 products

References

7 links