CVEvulnerability

CVE-2019-18873

9.0 CRITICAL Published 2019-11-12 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-11-12
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.0 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
CVSS 2.0 ([email protected])
8.5 HIGH — AV:N/AC:M/Au:S/C:C/I:C/A:C
Weaknesses
CWE-78, CWE-79

Description

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.

Affected configurations

• fudforum fudforum 3.0.9

Related

Weakness · CWE (2)

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation weakness

References