CVE-2018-25353CWE-863

Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload

High · published May 23, 2026

CVSS v4.0
8.7
EPSS
0%
Percentile
38.3
In the wild
Unconfirmed
What it is

Redaxo CMS Mediapool Addon 5.5.1 and older contains an arbitrary file upload vulnerability that allows authenticated users to bypass file extension blacklist restrictions. Attackers with editor accounts can upload executable files by using obfuscated extensions like php71 or php53 to evade the blacklist filter and execute arbitrary code.

The record
Technical detail
CVSS v4.0
8.7 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00452 · 38.3th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-05-23T18:30Z
EPSS history
Timeline
  • 23 MAY 18:30Z
    Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload
    cvelistv5