CVE-2026-62998: REDAXO is a PHP-based content management system

Q: How do I fix CVE-2026-62998?

redaxo: upgrade to 5.21.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-62998 being exploited?

CVE-2026-62998 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-62998 affect?

CVE-2026-62998 affects redaxo. Severity is medium (CVSS 4.3). 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

Q: How urgent is CVE-2026-62998?

Priority 28/100. Public exploit reference

Routine

MEDIUM 4.3UPGRADE

CVE-2026-62998 is a medium-severity flaw (CVSS 4.3) affecting redaxo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 s

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Weakness	CWE-20, CWE-200
Published	2026-09-23
Last modified	2026-10-19

Publisher (CNA): GitHub, Inc. · Vendor: redaxo

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-09-23 15:17 UTCPublished CVE record published
2026-10-19 19:37 UTCUpdated Record last modified

redaxo redaxo UPGRADE

Affected: < 5.21.2

Fixed in: 5.21.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy redaxo || rpm -q redaxo || redaxo --version

2. UPGRADE to 5.21.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade redaxo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade redaxo

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-62998?

redaxo: upgrade to 5.21.2. Exact commands for each OS are on this page.

Is CVE-2026-62998 being exploited?

CVE-2026-62998 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-62998 affect?

CVE-2026-62998 affects redaxo. Severity is medium (CVSS 4.3). 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

How urgent is CVE-2026-62998?

Priority 28/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2026-63002 MEDIUM 4.8 UPGRADE REDAXO is a PHP-based content management system
CVE-2026-63001 MEDIUM 4.8 UPGRADE REDAXO is a PHP-based content management system
CVE-2026-63000 MEDIUM 6.4 UPGRADE REDAXO is a PHP-based content management system

References

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