high7.8
CVE-2026-25731
calibre is an e-book manager.
Impact
calibre is an e-book manager. Prior to 9.2.0, a Server-Side Template Injection (SSTI) vulnerability in Calibre's Templite templating engine allows arbitrary code execution when a user converts an ebook using a malicious custom template file via the --template-html or --template-html-index command-line options. This vulnerability is fixed in 9.2.0.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Calibre-Ebook | Calibre | before 9.2.0 |