CVE-2026-42451

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

CVE-2026-42451

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

CVE-2026-42451 Grimmory: Stored XSS via Malicious EPUB Enables Session Token Theft

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

CVE-2026-42451

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

EUVD-2026-28861

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

CVE-2026-42451

Grimmory (self-hosted digital library) has a stored XSS vulnerability in its browser-based EPUB reader affecting versions prior to 2.3.1. An attacker can embed arbitrary JavaScript in a crafted EPUB, which executes in the victim’s browser with the Grimmory session context, enabling session token ...

CVE-2026-42451 Grimmory: Stored XSS via Malicious EPUB Enables Session Token Theft

Grimmory is a self-hosted digital library. Prior to version 2.3.1, a stored cross-site scripting XSS vulnerability in Grimmory's browser-based EPUB reader allows an attacker to embed arbitrary JavaScript in a crafted EPUB file. When a victim opens the book, the script executes in their browser wi...

Grimmory 跨站脚本漏洞

Grimmory is an open-source e-book management software developed by Grimmory. Versions of Grimmory prior to 2.3.1 contained a cross-site scripting vulnerability. This vulnerability stemmed from the browser EPUB reader, allowing attackers to embed arbitrary JavaScript in specially crafted EPUB file...

PT-2026-39217

Name of the Vulnerable Software and Affected Versions Grimmory versions prior to 2.3.1 Description A stored cross-site scripting XSS issue in the browser-based EPUB reader allows an attacker to embed arbitrary JavaScript within a crafted EPUB file. When a user opens the affected book, the script...