CVE-2011-4962

Silverstripe CMS Arbitrary Code Execution

6.8 MediumFix available

code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow remote attackers to execute arbitrary code via a crafted cookie in a user comment submission, which is not properly handled when it is deserialized.

Exploit likelihood

3.92%Down 2.4 points since Feb 4, 2022

What each source reports

NVD Score used 6.8

Record: CVE-2011-4962
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4962
Updated: 2026-11-02

EUVDEUVD-2022-4010 No score

Record: EUVD-2022-4010
Updated: 2026-11-03

GitHub AdvisoriesGHSA-gv6c-59h4-9pmg No score

Silverstripe CMS Arbitrary Code Execution

code/sitefeatures/PageCommentInterface.php in SilverStripe 2.4.x before 2.4.6 might allow remote attackers to execute arbitrary code via a crafted cookie in a user comment submission, which is not properly handled when it is deserialized.

Record: GHSA-gv6c-59h4-9pmg
Weakness: CWE-20, CWE-502
Updated: 2026-11-02

OSVGHSA-gv6c-59h4-9pmg No score

Silverstripe CMS Arbitrary Code Execution

Record: GHSA-gv6c-59h4-9pmg
Weakness: CWE-20, CWE-502
Updated: 2026-11-02

Affected products

silverstripe

Affected packages

Affected packages
Package	Affected	Fixed
`silverstripe/cms` Packagist	2.4.0 up to 2.4.6	2.4.6

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4962 is a medium vulnerability (CVSS 6.8) in Silverstripe, published September 17, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.92%, the 90th percentile. Fixed in silverstripe/cms 2.4.6.