CVE-2025-26845

An Eval Injection issue was discovered in Znuny through 7.1.3

Critical · published May 8, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
42.2
In the wild
Unconfirmed
What it is

🚨 A crafty user with write access can turn your backup script into a command execution tool! 🔥 Think of it like giving someone the keys to your office and then finding out they can use those keys to access the entire building, including sensitive rooms! This Eval Injection flaw in Znuny lets them execute any command the backup script can run. An attacker could exploit this vulnerability to run arbitrary commands on the server, leading to unauthorized access, data breaches, or even full system compromise. Imagine someone walking in and tampering with your crucial data or configurations—it could spell disaster!

Put simply

Think of it like giving someone the keys to your office and then finding out they can use those keys to access the entire building, including sensitive rooms! This Eval Injection flaw in Znuny lets them execute any command the backup script can run. This Eval Injection vulnerability occurs when a user with write access to the configuration file can manipulate it to execute commands via the backup.pl script, effectively bypassing normal security controls.

What to do

An attacker could exploit this vulnerability to run arbitrary commands on the server, leading to unauthorized access, data breaches, or even full system compromise. Imagine someone walking in and tampering with your crucial data or configurations—it could spell disaster! To safeguard your system, restrict write access to the configuration file immediately and upgrade to the latest version of Znuny. Regularly audit user permissions and ensure only trusted users have access. Don't forget to monitor your backups for unusual activity! You've got this! Follow these steps, and you'll be on your way to security hero status! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00504 · 42.2th percentile
Published
2025-05-08T00:00Z
EPSS history
Timeline
  • 08 MAY 00:00Z
    An Eval Injection issue was discovered in Znuny through 7.1.3
    cvelistv5