Vulnerability · Published Sep 25, 2026 · Assigned by GitHub_M
CVE-2026-63432Horilla: Server-Side Template Injection (SSTI) in Mail Preview Endpoints Allows Authenticated Users to Disclose Password Hashes and Server Metadata
Medium 6.5
In plain English
A medium-severity code injection in horilla-hr from horilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Official description
Horilla is an HR and CRM software. From 1.0.0 until 1.6.0 and 2.0.0, the get_mail_preview handlers in recruitment/views/actions.py and employee/not_in_out_dashboard.py render a user-controlled body at /recruitment/get-mail-preview/ and /employee/get-employee-mail-preview with the full request object in the Django template context. An authenticated user with a valid CSRF token can use template attribute traversal to read request.user.password, request.META, and related-user attributes, exposing password hashes, personal data, and server request metadata. Django template restrictions prevent arbitrary code execution through this primitive, so the demonstrated impact is information disclosure and possible offline password cracking or account compromise. This issue is fixed in versions 1.6.0 and 2.0.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| horilla | horilla-hr | >= 1.0.0, < 1.6.0>= 2.0.0-beta.1, < 2.0.0 |
Weakness: CWE-94, CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References
- https://github.com/horilla/horilla-hr/security/advisories/GHSA-9p83-4w63-7c24 x_refsource_CONFIRM
- https://github.com/horilla/horilla-hr/commit/bd3eed2168b0167f273a8dd7f218f1b37320ac39 x_refsource_MISC
- https://github.com/horilla/horilla-hr/commit/f1ca7cbc6216cb5bf19fc0174f49994ce5ffc2ad x_refsource_MISC
- https://github.com/horilla/horilla-hr/releases/tag/2.0.0 x_refsource_MISC