269 matches found
EUVD-2026-69786
BookStack before 26.05.4 contains a stored cross-site scripting vulnerability in the drawing upload endpoint that accepts unvalidated base64 content and stores it without content inspection. Attackers with editor permissions can upload SVG files containing scripts that execute in administrator...
PT-2026-84574
BookStack before 26.05.4 contains a stored cross-site scripting vulnerability in the drawing upload endpoint that accepts unvalidated base64 content and stores it without content inspection. Attackers with editor permissions can upload SVG files containing scripts that execute in administrator...
CVE-2026-84695: Improper Neutralization of Input During Web Page Generation
BookStack before 26.05.4 contains a stored cross-site scripting vulnerability in the drawing upload endpoint that accepts unvalidated base64 content and stores it without content inspection. Attackers with editor permissions can upload SVG files containing scripts that execute in administrator...
CVE-2026-82450
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
EUVD-2026-68105
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
CVE-2026-82450 BookStack before 26.05.4 Remote Code Execution via Book Cover
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
CVE-2026-82450
BookStack before version 26.05.4 is affected by a remote code execution vulnerability in the portable ZIP import functionality. A user with Import Content and Create Books permissions can upload a PHP polyglot file disguised as a book cover. The attacker bypasses image extension validation by emb...
CVE-2026-82450 BookStack before 26.05.4 Remote Code Execution via Book Cover
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
CVE-2026-82450 BookStack before 26.05.4 Remote Code Execution via Book Cover
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
CVE-2026-82450: Unrestricted Upload of File with Dangerous Type
BookStack before 26.05.4 contains a remote code execution vulnerability in the portable ZIP import functionality that allows users with Import Content and Create Books permissions to upload a PHP polyglot file as a book cover. Attackers can bypass image extension validation by embedding a PHP fil...
PT-2026-83429
Name of the Vulnerable Software and Affected Versions BookStack versions prior to 26.05.4 Description An authenticated remote code execution issue exists in the portable ZIP import functionality. Users possessing both Import Content and Create Books permissions can upload a PHP-image polyglot...
CVE-2026-67204
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
CVE-2026-67204 BookStack < 26.05.4 Broken Access Control via Image Gallery API
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
CVE-2026-67204
BookStack before 26.05.4 contains a broken access control vulnerability in the Image Gallery API endpoints . The API controller loads any image type without the content-type restrictions enforced by the web controller's gallery and drawio checks. An authenticated user with image-update or image-d...
EUVD-2026-64919
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
CVE-2026-67204 BookStack < 26.05.4 Broken Access Control via Image Gallery API
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
CVE-2026-67204 BookStack < 26.05.4 Broken Access Control via Image Gallery API
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
CVE-2026-67204: Incorrect Authorization
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
PT-2026-80904
BookStack before 26.05.4 contains a broken access control vulnerability that allows authenticated API users with image-update or image-delete permissions to manipulate other users' avatars by exploiting missing content-type restrictions in the Image Gallery API endpoints. Attackers can supply a...
📄 BookStack 25.12.1 Denial of Service
BookStack version 25.12.1 suffers from a denial of service vulnerability. Exploit Title: BookStack 25.12.1 - Denial of Service Search Terms Resource Exhaustion Date: 2026-04-29 Exploit Author: Gabriel Rodrigues TEXUGO Vendor Homepage: https://www.bookstackapp.com Software Link:...