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XSS attack in elemental "Content blocks in use" report

Moderate
emteknetnz published GHSA-x8xm-c7p8-2pj2 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

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

CVE ID

CVE-2025-25197

Weaknesses

No CWEs