CVE-2024-56923 Cross site scripting in Silverpeas Core

What is CVE-2024-56923?

CVE-2024-56923 is a medium-severity cross-site scripting vulnerability in n/a, published on 22 Jan 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Stored Cross-Site Scripting (XSS) Vulnerability in the Categorization Option of My Subscriptions Functionality in Silverpeas Core 6.3.1 <= 6.4.1 allows a remote attacker to execute arbitrary JavaScript code. This is achieved by injecting a malicious payload into the Name field of a subscription. The attack can lead to session hijacking, data theft, or unauthorized actions when an admin user views the affected subscription.

Weakness: CWE-79

Which versions are affected by CVE-2024-56923?

2 open source packages ship an affected version, including org.silverpeas.core:silverpeas-core. It affects 1 product.

Products include Silverpeas Silverpeas.

How do I fix CVE-2024-56923?

Upgrade org.silverpeas.core:silverpeas-core to 6.4.2 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-56923 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56923 exists.

Other vulnerabilities in n/a

• CVE-2018-19586 Path traversal in n/a Critical 9.9
• CVE-2024-42850 Silverpeas vulnerable to password complexity rule bypass Critical 9.8
• CVE-2024-36042 Silverpeas authentication bypass Critical 9.8
• CVE-2023-47322 Cross Site Request Forgery in Silverpeas High 8.8
• CVE-2023-47326 Cross Site Request Forgery in Silverpeas High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-788m-27g4-cf86.