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CVE-2012-4378
Multiple cross-site scripting (XSS) vulnerabilities in MediaWiki before 1.18.5 and 1.19.x before 1.19.2, when unspecified JavaScript…
Medium6.1EPSS 1.5%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Multiple cross-site scripting (XSS) vulnerabilities in MediaWiki before 1.18.5 and 1.19.x before 1.19.2, when unspecified JavaScript gadgets are used, allow remote attackers to inject arbitrary web script or HTML via the userlang parameter to w/index.php.
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 | Medium6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 1.5% · top 25% 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: Medium 6.1.
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
- https://bugzilla.redhat.com/show_bug.cgi?id=853417 (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://phabricator.wikimedia.org/T39587 (opens in a new tab)x_refsource_CONFIRMx_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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=686330 (opens in a new tab)x_refsource_MISCx_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-2012-4378)Record last updated .