CVE-2011-0508 json
Cross-site scripting (XSS) vulnerability in system/modules/comments/Comments.php in Contao CMS 2.9.2, and possibly other versions before 2.…
published 2011-01-20 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0528
- cvss
- 4.3
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 80%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- contao.org/changelog.html patch
- contao.org/news/items/contao-2_9_3.html advisory
Exploit prediction
1.92% chance of exploitation in the next 30 days, higher than 80% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 4.3 | AV:N/AC:M/Au:N/C:N/I:P/A:N |
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
contao.org
/news/items/contao-2_9_3.html
patch, vendor-advisory
-
contao.org
/changelog.html
patch
-
secunia.com
/advisories/42899
third-party-advisory, vendor-advisory
- dev.contao.org /issues/2751
-
exchange.xforce.ibmcloud.com
/vulnerabilities/64679
vdb-entry
-
osvdb.org
/70440
vdb-entry
-
securityfocus.com
/archive/1/515691/100/0/threaded
mailing-list
Sources
- CVE List CVE-2011-0508
- NVD CVE-2011-0508
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.