CVE-2025-68927: Improper Neutralization of HTML Tags in a Web Page in libredesk

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-12-27 · updated 2026-10-07
Weakness: CWE-79

Description

Libredesk is a self-hosted customer support desk. Prior to version 0.8.6-beta, LibreDesk is vulnerable to stored HTML injection in the contact notes feature. When adding notes via POST /api/v1/contacts/{id}/notes, the backend automatically wraps user input in <p> tags. However, by intercepting the request and removing the <p> tag, an attacker can inject arbitrary HTML elements such as forms and images, which are then stored and rendered without proper sanitization. This can lead to phishing, CSRF-style forced actions, and UI redress attacks. This issue has been patched in version 0.8.6-beta.

Affected products

abhinavxd libredesk: before 0.8.6 — fixed in 0.8.6

How to fix

Upgrade to a fixed version: abhinavxd libredesk 0.8.6. Check the vendor advisory for mitigations.

References

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