CVE-2020-36970CWE-22

PMB 5.6 - 'chemin' Local File Disclosure

Medium · published January 28, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
21.4
In the wild
Unconfirmed
What it is

⚠️ A crafty little vulnerability lurks in PMB 5.6! By manipulating the 'chemin' parameter in getgif.php, attackers can peek into sensitive system files like /etc/passwd. 😱 Think of this like leaving a window slightly ajar in your office. An opportunistic thief could simply reach in and grab sensitive documents without ever having to break in. That’s exactly what this vulnerability allows! An attacker exploiting this flaw could read critical files on your system, exposing user credentials and system configurations. While it’s not an immediate disaster, it’s a concerning gap that could lead to further attacks if left unchecked.

Put simply

Think of this like leaving a window slightly ajar in your office. An opportunistic thief could simply reach in and grab sensitive documents without ever having to break in. That’s exactly what this vulnerability allows! This local file disclosure vulnerability occurs because the file path input in getgif.php is unsanitized. Attackers can send crafted requests to access arbitrary files on the server, potentially revealing sensitive information.

What to do

An attacker exploiting this flaw could read critical files on your system, exposing user credentials and system configurations. While it’s not an immediate disaster, it’s a concerning gap that could lead to further attacks if left unchecked. To fix this issue, immediately sanitize the 'chemin' parameter input in getgif.php to prevent arbitrary file access. Also, consider updating to the latest version of PMB to ensure better security practices are in place. You've got this! With some quick fixes, you can fortify your defenses and keep your system safe. 🛡️

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00298 · 21.4th percentile
Weakness
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Published
2026-01-28T17:35Z
EPSS history
Timeline
  • 28 JAN 17:35Z
    PMB 5.6 - 'chemin' Local File Disclosure
    cvelistv5