Multiple cross-site scripting (XSS) vulnerabilities in Contao before 2.10.2 allow remote attackers to inject arbitrary web script or HTML v…

published 2011-11-28 14 y ago modified 2026-06-16 4 mo ago also EUVD-2011-4267

cvss: 4.3; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.5%; EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits: 1; Exploit-DB

Multiple cross-site scripting (XSS) vulnerabilities in Contao before 2.10.2 allow remote attackers to inject arbitrary web script or HTML via the PATH_INFO to index.php in a (1) teachers.html or (2) teachers/ action.

Timeline

2011-10-02 First public exploit (EDB-36225)
2011-11-28 Published

Exploit prediction

1.54% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-36225 ContaoCMS 2.10.1 - Cross-Site Scripting webapps, 2011-10-02

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

securityfocus.com /archive/1/520046/100/0/threaded
mailing-list
openwall.com /lists/oss-security/2011/11/21/30
mailing-list
dev.contao.org /projects/typolight/repository/revisions/1041
openwall.com /lists/oss-security/2011/11/22/1
mailing-list
rul3z.de /advisories/SSCHADV2011-025.txt

Sources

CVE List CVE-2011-4335
NVD CVE-2011-4335

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.

Summary