Auth bypass in Redaxo Cms Mediapool
CVE-2018-25353
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (36.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 37th percentile — 36.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Redaxo Cms Mediapool — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/44891 (exploit)
- redaxo.org (product)
- redaxo.org/download/redaxo/5.5.1.zip (product)
- www.vulncheck.com/advisories/redaxo-cms-mediapool-addon-arbitrary-file-upload (third-party-advisory)
Frequently asked questions
- What is CVE-2018-25353?
- CVE-2018-25353 is a high-severity vulnerability in Redaxo Cms Mediapool, classified under Incorrect Authorization. CVSS score: 8.8/10. Published 2026-05-23.
- How severe is CVE-2018-25353?
- High severity. CVSS v3 base score is 8.8 out of 10.