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CVE-2026-25731

HIGH CVSS: 7.8 Published: 2026-02-06 Modified: 2026-06-17

Description

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 Platforms

Calibre-Ebook Calibre

Weakness Type

CWE-1336

References