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Silverstripe cross-site scripting (XSS) attack in elemental "Content blocks in use" report

Moderate severity GitHub Reviewed Published Apr 10, 2025 in silverstripe/silverstripe-elemental • Updated Apr 10, 2025

Package

composer dnadesign/silverstripe-elemental (Composer)

Affected versions

>= 2.1.2, < 5.3.12

Patched versions

5.3.12

Description

An elemental block can include an XSS payload, which can be executed when viewing the "Content blocks in use" report.

The vulnerability is specific to that report and is a result of failure to cast input prior to including it in the grid field.

References

References

@emteknetnz emteknetnz published to silverstripe/silverstripe-elemental Apr 10, 2025
Published by the National Vulnerability Database Apr 10, 2025
Published to the GitHub Advisory Database Apr 10, 2025
Reviewed Apr 10, 2025
Last updated Apr 10, 2025

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

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.
(5th percentile)

Weaknesses

CVE ID

CVE-2025-25197

GHSA ID

GHSA-x8xm-c7p8-2pj2

Source code

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