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.
References (2)
Core 2
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/abhinavxd/libredesk/security/advisories/GHSA-wh6m-h6f4-rjf4
Scores
CVSS v3
6.1
EPSS
0.0006
EPSS Percentile
18.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-79
Status
published
Products (2)
abhinavxd/libredesk
0 - 0.8.6-betaGo
libredesk/libredesk
< 0.8.6
Published
Dec 27, 2025
Tracked Since
Feb 18, 2026