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Fencer Intel
high 7.5

CVE-2019-12474 json

Wikimedia information leak vulnerability

published 7y ago modified 4mo ago also GHSA-2qrr-c2gh-pr35 , EUVD-2022-2038

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Wikimedia MediaWiki 1.23.0 through 1.32.1 has an information leak. Privileged API responses that include whether a recent change has been patrolled may be cached publicly. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

Patch / fix

  • packagist mediawiki/core 1.27.6, 1.30.2, 1.31.2, 1.32.2
  • mediawiki mediawiki 1.27.6, 1.30.2, 1.31.2, 1.32.2
  • mediawiki Debian 14, Debian 13, Debian 12 1:1.31.2-1

debian advisories DEBIAN-CVE-2019-12474

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Exploit prediction

2.04% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
packagist mediawiki/core
>=1.27.0, <1.27.6
>=1.30.0, <1.30.2
>=1.31.0, <1.31.2
>=1.32.0, <1.32.2
1.27.6
1.30.2
1.31.2
1.32.2

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.