Description
REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content editors to inject HTML by storing unescaped values rendered by media, medialist, link and linklist widgets. Attackers can submit crafted REX_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts.
Published: 2026-10-27
Score: 5.1 Medium
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

Sat, 31 Oct 2026 04:30:00 +0100

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 27 Oct 2026 15:15:00 +0100

Type Values Removed Values Added
First Time appeared Redaxo core
Vendors & Products Redaxo core

Tue, 27 Oct 2026 12:15:00 +0100

Type Values Removed Values Added
Description REDAXO before 5.21.4 contains a stored cross-site scripting vulnerability that allows content editors to inject HTML by storing unescaped values rendered by media, medialist, link and linklist widgets. Attackers can submit crafted REX_INPUT_MEDIA or REX_INPUT_LINK values that break out of the value attribute, executing script in administrators' backend sessions to hijack accounts.
Title REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets
First Time appeared Redaxo
Redaxo redaxo
Weaknesses CWE-79
CPEs cpe:2.3:a:redaxo:redaxo:*:*:*:*:*:*:*:*
Vendors & Products Redaxo
Redaxo redaxo
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-31T02:39:35.418Z

Reserved: 2026-10-27T01:02:44.942Z

Link: CVE-2026-116900

cve-icon Vulnrichment

Updated: 2026-10-31T02:39:30.915Z

cve-icon NVD

Status : Deferred

Published: 2026-10-27T11:17:33.080

Modified: 2026-10-31T03:17:30.420

Link: CVE-2026-116900

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T15:00:04Z

Weaknesses