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Silverstripe CMS Arbitrary Code Execution

Moderate severity GitHub Reviewed Published May 17, 2022 to the GitHub Advisory Database • Updated Jan 19, 2024

Package

composer silverstripe/cms (Composer)

Affected versions

>= 2.4.0, < 2.4.6

Patched versions

2.4.6

Description

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.

References

Published by the National Vulnerability Database Sep 17, 2012
Published to the GitHub Advisory Database May 17, 2022
Reviewed Jan 19, 2024
Last updated Jan 19, 2024

Severity

Moderate

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(85th percentile)

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

Deserialization of Untrusted Data

The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Learn more on MITRE.

CVE ID

CVE-2011-4962

GHSA ID

GHSA-gv6c-59h4-9pmg

Source code

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