REDAXO up to 5.21.1 List list.php rex_list::getSortColumn input validation

Summaryinfo

A vulnerability marked as problematic has been reported in REDAXO up to 5.21.1. Affected is the function rex_list::getSortColumn of the file redaxo/src/core/lib/list.php of the component List. This manipulation causes input validation. The identification of this vulnerability is CVE-2026-62998. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in REDAXO up to 5.21.1. Affected by this vulnerability is the function rex_list::getSortColumn of the file redaxo/src/core/lib/list.php of the component List. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality. The summary by CVE is:

REDAXO is a PHP-based content management system. Prior to 5.21.2, rex_list::getSortColumn() in redaxo/src/core/lib/list.php accepts the sort request parameter without checking whether setColumnSortable() registered the requested column. An authenticated backend user can make prepareQuery() add an escaped but unauthorized ORDER BY identifier, allowing error-based enumeration of columns in joined tables and ordering by unselected sensitive fields such as rex_user.password. This issue is fixed in version 5.21.2.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-62998 since 07/15/2026. The exploitation appears to be easy. The attack can be launched remotely. Additional levels of successful authentication are needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

By approaching the search of inurl:redaxo/src/core/lib/list.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.21.2 eliminates this vulnerability.

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Productinfo

Name

• REDAXO

Version

• 5.21.0
• 5.21.1

CPE 2.3info

• 🔒
• 🔒

CPE 2.2info

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• 🔒

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