CVE-2013-4568
Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3…
- 4.3MediumCVSS base score
- 2.1%Exploitation in 30 daysEPSS · top 18% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Incomplete blacklist vulnerability in Sanitizer::checkCss in MediaWiki before 1.19.9, 1.20.x before 1.20.8, and 1.21.x before 1.21.3 allows remote attackers to conduct cross-site scripting (XSS) attacks via certain non-ASCII characters in CSS, as demonstrated using variations of "expression" containing (1) full width characters or (2) IPA extensions, which are converted and rendered by Internet Explorer.
Timeline
ID reserved
By redhat
- 6 months later
· 6 months later
Published
- 11 years later
· 11 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 | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
n/a
- affected n/a
References
8
- 57472 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2891 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://bugzilla.wikimedia.org/attachment.cgi?id=13452&action=diff (opens in a new tab)x_refsource_MISCx_transferred
- [MediaWiki-announce] 20131114 MediaWiki Security Release: 1.21.3, 1.20.8 and 1.19.9 (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- FEDORA-2013-21856 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- 63761 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- FEDORA-2013-21874 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- https://bugzilla.wikimedia.org/show_bug.cgi?id=55332 (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)
- EUVD EUVD-2013-4426 (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-2013-4568)Record last updated .