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Silverstripe Framework has a XSS via insert media remote file oembed

Moderate severity GitHub Reviewed Published Jan 14, 2025 in silverstripe/silverstripe-asset-admin • Updated Jan 15, 2025

Package

composer silverstripe/framework (Composer)

Affected versions

< 5.3.8

Patched versions

5.3.8

Description

Impact

When using the "insert media" functionality, the linked oEmbed JSON includes an HTML attribute which will replace the embed shortcode. The HTML is not sanitized before replacing the shortcode, allowing a script payload to be executed on both the CMS and the front-end of the website.

References

Reported by

James Nicoll from Fujitsu Cyber Security Services

References

@GuySartorelli GuySartorelli published to silverstripe/silverstripe-asset-admin Jan 14, 2025
Published to the GitHub Advisory Database Jan 14, 2025
Reviewed Jan 14, 2025
Published by the National Vulnerability Database Jan 14, 2025
Last updated Jan 15, 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
None
User interaction
Required
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:N/UI:R/S:U/C:L/I:L/A:N

EPSS score

0.045%
(18th percentile)

Weaknesses

CVE ID

CVE-2024-47605

GHSA ID

GHSA-7cmp-cgg8-4c82

Source code

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