CVE-2026-62998 REDAXO: Unwhitelisted ORDER BY Column in rex_list Allows Authenticated Column Enumeration
Authenticated users can enumerate database columns and sensitive data via unvalidated ORDER BY parameters in REDAXO CMS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-62998?
CVE-2026-62998 is a medium-severity vulnerability in redaxo core, published on 23 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-62998?
2 open source packages ship an affected version, including redaxo/source. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
redaxo/source Packagist | All versions | 5.21.2 |
redaxo/source Packagist | All versions | 5.21.2 |
Products include Redaxo Redaxo.
How do I fix CVE-2026-62998?
Upgrade redaxo/source to 5.21.2 or later.
Is CVE-2026-62998 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-62998 exists.
Other vulnerabilities in redaxo core
- CVE-2018-18200 SQL injection in n/a
- CVE-2018-17831 SQL injection in n/a
- CVE-2026-21857 Redaxo has Path Traversal in Backup Addon Leading to Arbitrary File Read
- CVE-2006-2843 Code injection in n/a
- CVE-2006-2844 Multiple PHP remote file inclusion vulnerabilities in Redaxo 3.0 allow remote attackers to execute arbitrary PHP code via a URL in the REX[I
Sources
Also known as GHSA-4f5f-j737-pm58.