Cross-site request forgery in Flarum - CVE-2019-13183
Published: July 5, 2019 / Updated: April 20, 2026
Vulnerability identifier: #VU126538
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-13183
CWE-ID: CWE-352
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Flarum
Affected software:
Flarum
Flarum
Detailed vulnerability description
The vulnerability allows a remote attacker to perform actions on behalf of a victim user.
The vulnerability exists due to improper request verification in CSRF protection in flarum/core when handling crafted cross-site requests from a victim's browser. A remote attacker can trick a logged-in user into visiting a malicious site to perform actions on behalf of a victim user.
An attacker who targets a user with admin privileges may manipulate administrative settings.
How to mitigate CVE-2019-13183
Install security update from vendor's website.