Calibre <= 7.15.0 - Reflected Cross-Site Scripting (XSS)

It is possible to inject arbitrary JavaScript code into the /browse endpoint of the Calibre content server, allowing an attacker to craft a URL that when clicked by a victim, will execute the attacker’s JavaScript code in the context of the victim’s browser. If the Calibre server is running with...

CVE-2026-27824 calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...

CVE-2026-27824 calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing

calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both remoteaddr and the X-Forwarded-For header. Since the X-Forwarded-For header i...