CVE-2026-42451 - CERT CVE
ID CVE-2026-42451
Sažetak 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 with full access to the Grimmory application's session context. This can enable session token theft and account takeover, including administrative access if an administrator opens the affected book. This issue has been patched in version 2.3.1.
Reference
CVSS
Base: 6.3
Impact: 5.5
Exploitability:0.8
Pristup
VektorSloženostAutentikacija
LOCAL HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
HIGH HIGH LOW
CVSS vektor CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
Zadnje važnije ažuriranje 13-05-2026 - 16:49
Objavljeno 08-05-2026 - 23:16