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CVE-2011-4962

23
FAUCET Score

CVE-2011-4962 describes a critical deserialization vulnerability in SilverStripe 2.4.x before version 2.4.6, specifically within the code/sitefeatures/PageCommentInterface.php component. This flaw allows remote attackers to execute arbitrary code by submitting a user comment containing a specially crafted cookie that is improperly handled during deserialization. The vulnerability carries a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and potential for partial compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.0CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:2.4.0:*:*:*:*:*:*:*
2.4.1CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:2.4.1:*:*:*:*:*:*:*
2.4.2CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:2.4.2:*:*:*:*:*:*:*
2.4.3CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:2.4.3:*:*:*:*:*:*:*
2.4.4CPE matchmatch criteria
cpe:2.3:a:silverstripe:silverstripe:2.4.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.92%
Probability of exploitation in next 30 days
EPSS Percentile
89.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0392 is in the 85th percentile among its peer group of 19,955 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: silverstripe/cmsFixed in: 2.4.6
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-gv6c-59h4-9pmgmedium

Silverstripe CMS Arbitrary Code Execution

May 17, 2022

References

doc.silverstripe.org / framework/en/trunk/changelogs/2.4.6
Vendor Advisory
github.com / silverstripe/silverstripe-cms/commit/d15e850
ExploitPatch
openwall.com / lists/oss-security/2012/04/30/1
Patch
openwall.com / lists/oss-security/2012/04/30/3