Description
Snipe-IT versions before 8.7.0 fail to HTML-escape the employee_num field in the acceptance PDF generator, allowing attackers with users.edit permission to inject img tags into TCPDF's writeHTML() function. Attackers can craft a malicious employee_num value containing an img tag with an arbitrary HTTP(S) URL to trigger server-side requests to internal services, cloud metadata endpoints, or external targets when a victim signs an asset acceptance.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| grokability | snipe-it | 8.6.3 – < 8.7.0 | 8.7.0 |
Advisories 1
- WID-SEC-2026-2981 Snipe-IT: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 24, 2026
References
- GitHub Security Advisory (GHSA-73xg-j94v-gjcf) vendor-advisory
- VulnCheck Advisory: Snipe-IT before 8.7.0 Server-Side Request Forgery via employee_num third-party-advisory