CVE-2026-72576
MediumCVSS 5.4Exploitation Probability (EPSS)
Low risk6th percentile - higher than 6% of all known CVEs
Summary
A stored cross-site scripting (XSS) vulnerability in Bludit 4.0.0-beta allows a low-privileged authenticated user (Author role) to inject arbitrary JavaScript by uploading a crafted SVG file as the site logo.
Risk Assessment
Malicious script in the logo executes in the browser of any user who loads the logo, potentially leading to data theft or session hijacking.
Recommendation
Update Bludit to a stable version that includes a fix for this vulnerability and restrict permissions for uploading SVG files.
Other vulnerabilities in Bludit
See all- CVE-2026-46657High
Bludit prior to version 3.22.0 has a vulnerability in the user management logic that allows deactivated accounts to maintain access via persistent authentication tokens. When an administrator disables a user account, the application fails to invalidate or clear the associated tokenAuth and tokenRemember fields in the JSON database. Consequently, any user with a pre-existing "Remember Me" cookie can bypass the account disablement and maintain a valid authenticated state.
- CVE-2026-46656High
Bludit prior to version 3.22.0 has a Broken Access Control flaw where active sessions remain valid even after the user account is deleted from the database. This allows revoked users to maintain unauthorized access.
- CVE-2026-27742Medium
Bludit 3.16.2 contains a stored XSS vulnerability in the post content functionality. The application performs client-side sanitation but lacks server-side enforcement. An authenticated user can inject arbitrary JavaScript into post content, which is stored and rendered to other users without proper output encoding.
- CVE-2026-27741Medium
Bludit 3.16.1 has a CSRF vulnerability in the /admin/uninstall-plugin/ and /admin/install-theme/ endpoints. Lack of CSRF tokens or request origin validation allows an attacker to trick an authenticated admin into performing unauthorized actions.
- CVE-2020-19228High
An issue was found in Bludit v3.13.0 where an unsafe implementation of the backup plugin allows attackers to upload arbitrary files to the server.
Original NVD description (English source)
A stored cross-site scripting (XSS) vulnerability in Bludit 4.0.0-beta allows a low-privileged authenticated user (Author role) to inject arbitrary JavaScript by uploading a crafted SVG file as the site logo. A stored script tag in the SVG executes in the browser of any user who loads the logo.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS