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CVE-2026-116900 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.7 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

CNA: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/redaxo/core/security/advisories/GHSA-5wmj-5x79-rr87	[email protected]	AdvisoryRemedyVendor
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-stored-xss-via-media-and-link-input-widgets	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
REDAXO	<= 5.21.3 (semver)
CPE cpe:2.3:a:redaxo:redaxo:::::::: Remediation Upgrade: 5.21.4moderate effort Mitigation:low effort Limit content and metadata editing permissions to trusted users.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 31, 2026	CVE Modified	CISA-ADP
Oct 27, 2026	New CVE Received	[email protected]