CVE-2019-18873
CRITICALFUDForum 3.0.9 - Stored XSS
Title source: llmDescription
FUDForum 3.0.9 is vulnerable to Stored XSS via the User-Agent HTTP header. This may result in remote code execution. An attacker can use a user account to fully compromise the system via a GET request. When the admin visits user information under "User Manager" in the control panel, the payload will execute. This will allow for PHP files to be written to the web root, and for code to execute on the remote server. The problem is in admsession.php and admuser.php.
Exploits (3)
Scores
CVSS v3
9.0
EPSS
0.0275
EPSS Percentile
86.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Details
CWE
CWE-78
CWE-79
Status
published
Products (1)
fudforum/fudforum
3.0.9
Published
Nov 12, 2019
Tracked Since
Feb 18, 2026