CVE-2024-32981: framework XSS — Fix

Description

Silverstripe framework is the PHP framework forming the base for the Silverstripe CMS. In affected versions a bad actor with access to edit content in the CMS could add send a specifically crafted encoded payload to the server, which could be used to inject a JavaScript payload on the front end of the site. The payload would be sanitised on the client-side, but server-side sanitisation doesn't catch it. The server-side sanitisation logic has been updated to sanitise against this type of attack in version 5.2.16. All users are advised to upgrade. There are no known workarounds for this vulnerability.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
silverstripe	framework	< 5.2.16

References

Advisories & Patches

https://github.com/silverstripe/silverstripe-framework/commit/b8d20dc9d531550e06fd7da7a0eafa551922e2e1 https://www.silverstripe.org/download/security-releases/cve-2024-32981 https://github.com/silverstripe/silverstripe-framework/commit/b8d20dc9d531550e06fd7da7a0eafa551922e2e1 https://www.silverstripe.org/download/security-releases/cve-2024-32981

Other References

https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-chx7-9x8h-r5mg https://github.com/silverstripe/silverstripe-framework/security/advisories/GHSA-chx7-9x8h-r5mg

Frequently Asked Questions

What is CVE-2024-32981? +

Silverstripe framework is the PHP framework forming the base for the Silverstripe CMS. In affected versions a bad actor with access to edit content in the CMS could add send a specifically crafted encoded payload to the server, which could be used to inject a JavaScript payload on the front end of the site. The payload would be sanitised on the client-side, but server-side sanitisation doesn't catch it. The server-side sanitisation logic has been updated to sanitise against this type of attack in version 5.2.16. All users are advised to upgrade. There are no known workarounds for this vulnerability. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2024-32981? +

CVE-2024-32981 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-32981? +

CVE-2024-32981 affects products from silverstripe, specifically: framework. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-32981? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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