CVE-2018-25353
High
Description
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.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Redaxo CMS Mediapool
PublishedMay 23, 2026
First seenMay 23, 2026
Weakness typeCWE-863Incorrect authorization
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Redaxo Redaxo CMS Mediapool | v ≤ 5.5.1 | — |
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