Vulnerability record · CVE-2011-0526 · published 8 February 2011

CVE-2011-0526: Vanillaforums vanilla cross-site scripting vulnerability

Vanillaforums · Vanilla

Cross-site scripting (XSS) vulnerability in index.php in Vanilla Forums before 2.0.17 allows remote attackers to inject arbitrary web script or HTML via the Target parameter in a /entry/signin action.

4.3 CVSS 2.0 Medium EPSS 1.3% · top 31.3% CWE-79 · Cross-site scripting

4.3CVSS 2.0 base score

1.3%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

12References, 8 tagged exploit

16 Jun 2026Last modified by NVD

Description

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Vanilla Vanillaforums

References

Link	Tags
http://openwall.com/lists/oss-security/2011/01/27/2	Exploit
http://openwall.com/lists/oss-security/2011/01/27/5	Exploit
http://secunia.com/advisories/43074	Vendor Advisory
http://www.osvdb.org/70677	Exploit
http://www.vanillaforums.org/discussion/14397/vanilla-2.0.17-released
http://yehg.net/lab/pr0js/advisories/%5Bvanilla_forums-2.0.16%5D_cross_site_scripting	Exploit
http://openwall.com/lists/oss-security/2011/01/27/2	Exploit
http://openwall.com/lists/oss-security/2011/01/27/5	Exploit
http://secunia.com/advisories/43074	Vendor Advisory
http://www.osvdb.org/70677	Exploit
http://www.vanillaforums.org/discussion/14397/vanilla-2.0.17-released
http://yehg.net/lab/pr0js/advisories/%5Bvanilla_forums-2.0.16%5D_cross_site_scripting	Exploit

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2011-3614Vanillaforums vanilla vulnerabilityAn Access Control vulnerability exists in the Facebook, Twitter, and Embedded plugins in Vanilla Forums before 2.0.17.9.EPSS 2.0%22 Jan 2020 9.8CVE-2018-18903Vanillaforums vanilla code injection vulnerabilityVanilla 2.6.x before 2.6.4 allows remote code execution.EPSS 5.2%3 Nov 2018 7.5CVE-2011-3613Vanillaforums vanilla information exposure vulnerabilityAn issue exists in Vanilla Forums before 2.0.17.9 due to the way cookies are handled.EPSS 1.7%22 Jan 2020 7.5CVE-2016-10073Vanilla Forums email domain spoofing via Host headerThe from method in library/core/class.email.php in Vanilla Forums before 2.3.1 trusts the HTTP Host header when constructing the sender address of ou…EPSS 84%analysed23 May 2017 7.5CVE-2013-3527Vanillaforums vanilla sql injection vulnerabilityMultiple SQL injection vulnerabilities in Vanilla Forums before 2.0.18.8 allow remote attackers to execute arbitrary SQL commands via the parameter n…EPSS 3.5%10 May 2013 7.5CVE-2013-3528Vanillaforums vanilla vulnerabilityUnspecified vulnerability in the update check in Vanilla Forums before 2.0.18.8 has unspecified impact and remote attack vectors, related to "object …EPSS 5.7%10 May 2013 7.2CVE-2018-19499Vanillaforums vanilla deserialization of untrusted data vulnerabilityVanilla before 2.5.5 and 2.6.x before 2.6.2 allows Remote Code Execution because authenticated administrators have a reachable call to unserialize in…EPSS 2.0%23 Nov 2018 6.5CVE-2018-16410Vanillaforums vanilla sql injection vulnerabilityVanilla before 2.6.1 allows SQL injection via an invitationID array to /profile/deleteInvitation, related to applications/dashboard/models/class.invi…EPSS 0.94%3 Sep 2018

Source: NIST National Vulnerability Database (record CVE-2011-0526), CISA KEV, FIRST EPSS (scores of 2026-09-30). This page is refreshed as NVD updates the record.