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CVE-2012-4380
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and…
High7.5EPSS 2.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
MediaWiki before 1.18.5, and 1.19.x before 1.19.2 allows remote attackers to bypass GlobalBlocking extension IP address blocking and create an account via unspecified vectors.
Timeline
ID reserved
By redhat
- 5 years later
· 5 years later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | High7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
- EPSS (exploitation in 30 days)
- 2.3% · top 16% of all CVEs (8 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (6)
- [oss-security] 20120831 CVE Request -- MediaWiki 1.19.2 and 1.18.5 multiple security flaws (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [MediaWiki-announce] 20120831 MediaWiki security release: 1.19.2 and 1.18.5 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20120831 Re: CVE Request -- MediaWiki 1.19.2 and 1.18.5 multiple security flaws (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=853440 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330 (opens in a new tab)x_refsource_MISCx_transferred
- https://phabricator.wikimedia.org/T41824 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2012-4380)Record last updated .