REDAXO: Missing CSRF Protection on Package Update Action Allows Forced Addon Updates

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63000
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-23 15:17:15 UTC
Updated2026-10-19 20:35:09 UTC
DescriptionREDAXO is a PHP-based content management system. Prior to 5.21.2, rex_api_install_package_update in redaxo/src/addons/install/lib/api/api_package_update.php inherits the false default from rex_api_function::requiresCsrfProtection() instead of requiring a CSRF token. An unauthenticated attacker can cause a logged-in administrator's browser to request a selected package update from the configured REDAXO package server, changing installed addon code or disrupting the site without the administrator's intent. This issue is fixed in version 5.21.2.

Risk And Classification

Primary CVSS: v3.1 6.4 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

EPSS: 0.001310000 probability, percentile 0.024030000 (date 2026-10-19)

Problem Types: CWE-352 | CWE-352 CWE-352: Cross-Site Request Forgery (CSRF)

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L
3.1CNADECLARED6.4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
High
Availability
Low

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:L

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Redaxo Redaxo All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Redaxo Core affected < 5.21.2 Not specified

References

ReferenceSourceLinkTags
github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3 [email protected] github.com Patch
github.com/redaxo/core/releases/tag/5.21.2 [email protected] github.com Release Notes
github.com/redaxo/core/pull/6579 [email protected] github.com Issue Tracking, Patch
github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Vendor Advisory
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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