CVE-2011-0508
Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before…
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before 2.9.3, allows remote attackers to inject arbitrary web script or HTML via the HTTP X_FORWARDED_FOR header, which is stored by system/libraries/Environment.php but not properly handled by a comments action to main.php.
Timeline
ID reserved
By mitre
Published
- 14 years later
· 14 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)
- 1.9% · top 20% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
References (7)
- http://dev.contao.org/issues/2751 (opens in a new tab)x_refsource_CONFIRMx_transferred
- contao-xforwardedfor-xss(64679) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 70440 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- 42899 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://www.contao.org/news/items/contao-2_9_3.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 20110112 [MajorSecurity SA-081]Contao CMS 2.9.2 - Persistent Cross Site Scripting Issue (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- http://www.contao.org/changelog.html (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-2011-0508)Record last updated .