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.
Published: 2026-05-23
Score: 8.7 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 26 May 2026 19:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 25 May 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Redaxo redaxo Cms Mediapool
Vendors & Products Redaxo redaxo Cms Mediapool

Sat, 23 May 2026 18:45:00 +0000

Type Values Removed Values Added
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.
Title Redaxo CMS Mediapool Addon 5.5.1 Arbitrary File Upload
First Time appeared Redaxo
Redaxo redaxo
Weaknesses CWE-863
CPEs cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
Vendors & Products Redaxo
Redaxo redaxo
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, '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'}


Subscriptions

Redaxo Redaxo Redaxo Cms Mediapool
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-26T17:55:36.119Z

Reserved: 2026-05-23T15:48:30.219Z

Link: CVE-2018-25353

cve-icon Vulnrichment

Updated: 2026-05-26T17:55:31.139Z

cve-icon NVD

Status : Deferred

Published: 2026-05-23T19:16:55.510

Modified: 2026-06-17T01:55:17.987

Link: CVE-2018-25353

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-25T11:33:24Z

Weaknesses