CVE-2012-4382
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata,...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-4382- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-4382- Updated
- 2026-11-02
EUVDEUVD-2012-4325 No score
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.
- Record
EUVD-2012-4325- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qxg6-q47j-rhmf
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 does not properly protect user block metadata,...
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.
- Record
GHSA-qxg6-q47j-rhmf- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2012-4382- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-4382
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.
- Record
DEBIAN-CVE-2012-4382- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVUBUNTU-CVE-2012-4382
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.
- Record
UBUNTU-CVE-2012-4382- CVSS 3.0
- 4.9 Medium
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-4382 is a medium vulnerability (CVSS 4.9) in Mediawiki, published October 19, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.20%, the 68th percentile. Fixed in mediawiki 1:1.19.2-1.