CVE-2026-63000

Summary

REDAXO 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.

Affected Software

Weaknesses

• CWE-352: CWE-352: Cross-Site Request Forgery (CSRF)

References

• https://github.com/redaxo/core/security/advisories/GHSA-m8r3-22v6-g877
• https://github.com/redaxo/core/pull/6579
• https://github.com/redaxo/core/commit/a13abbffbad4fdea46a4edc86cdba3335ca9e8f3
• https://github.com/redaxo/core/releases/tag/5.21.2

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