CVE-2012-4382 json
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read…
published 2017-10-19 9 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4325
- cvss
- 4.9
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.2%
- EPSS 1.2% chance of exploitation in 30 days, percentile 68%
- public exploits
- 0
- none known
Summary
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata, which allows remote administrators to read a user block reason via a reblock attempt.
Patch / fix
- mediawiki Debian 14, Debian 13, Debian 12 1:1.19.2-1
debian advisories DEBIAN-CVE-2012-4382
Exploit prediction
1.20% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 4.9 | CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
openwall.com
/lists/oss-security/2012/08/31/6
mailing-list, patch, third-party-advisory
-
lists.wikimedia.org
/pipermail/mediawiki-announce/2012-August/000119.html
mailing-list, patch, vendor-advisory
-
openwall.com
/lists/oss-security/2012/08/31/10
mailing-list, patch, third-party-advisory
-
phabricator.wikimedia.org
/T41823
issue-tracking, vendor-advisory
-
bugs.debian.org
/cgi-bin/bugreport.cgi?bug=686330
issue-tracking, third-party-advisory
Sources
- CVE List CVE-2012-4382
- NVD CVE-2012-4382
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.