CVE-2011-4962: Silverstripe CMS Arbitrary Code Execution
6.8
CVSS Score
Basic Information
CVE ID
GHSA ID
EPSS Score
0.85212%
CWE
Published
5/17/2022
Updated
1/19/2024
KEV Status
No
Technology
PHP
Technical Details
CVSS Vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
silverstripe/cms | composer | >= 2.4.0, < 2.4.6 | 2.4.6 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The vulnerability stems from using PHP
's native serialize()
/unserialize()
on user-controlled cookie data. The patch replaced these with JSON serialization (Convert::raw2json/json2array
), confirming these functions were the root cause. unserialize()
on untrusted input is a well-known anti-pattern (CWE-502
), and the cookie data flow (user comment -> serialize() -> cookie -> unserialize()
) creates an exploit chain. The direct correlation between the vulnerability description, CWE
mapping, and patched functions provides high confidence.