REDAXO up to 5.21.1 Install api_package_update.php rex_api_install_package_update cross-site request forgery

Summaryinfo

A vulnerability classified as problematic has been found in REDAXO up to 5.21.1. Affected by this issue is the function rex_api_install_package_update of the file redaxo/src/addons/install/lib/api/api_package_update.php of the component Install. Performing a manipulation results in cross-site request forgery. This vulnerability is identified as CVE-2026-63000. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in REDAXO up to 5.21.1. This affects the function rex_api_install_package_update of the file redaxo/src/addons/install/lib/api/api_package_update.php of the component Install. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. CWE is classifying the issue as CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. This is going to have an impact on integrity. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-63000 since 07/15/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

By approaching the search of inurl:redaxo/src/addons/install/lib/api/api_package_update.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.21.2 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• REDAXO

Version

• 5.21.0
• 5.21.1

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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