High severity · published Oct 27, 2026
CVE-2026-116896
REDAXO before 5.21.5 Privilege Escalation via Backup Export of Authentication Tables
New
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
REDAXO before 5.21.5 contains a missing authorization vulnerability in the backup addon export that accepts any database table, allowing non-admin users with the backup[export] permission to export rex_user, rex_user_session, and other applications' tables. Attackers can obtain plaintext session ids and stay-logged-in keys to take over admin accounts, or password hashes for offline cracking.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 13% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
core · redaxo
before 5.21.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116896
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116896
github.com
https://github.com/redaxo/core/security/advisories/GHSA-phjc-vx3j-58r3
www.vulncheck.com
https://www.vulncheck.com/advisories/redaxo-before-5.21.5-privilege-escalation-via-backup-export-of-authentication-tables
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