Medium severity · published Feb 4, 2026
CVE-2026-1554
Central Authentication System (CAS) Server - Less critical - XML Element Injection - SA-CONTRIB-2026-007
4.2
CVSS
0.2%
EPSS
No
On KEV
Description
XML Injection (aka Blind XPath Injection) vulnerability in Drupal Central Authentication System (CAS) Server allows Privilege Escalation.This issue affects Central Authentication System (CAS) Server: from 0.0.0 before 2.0.3, from 2.1.0 before 2.1.2.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DR
Drupal · Drupal
0.0.0 before 2.0.3; 2.1.0 before 2.1.2 · source: vendor
CA
Central Authentication System Server · Jtenman
before 2.0.3; 2.1.0 before 2.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-1554
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-1554
Vendor Advisory
https://www.drupal.org/sa-contrib-2026-007
More from Drupal
9.8
CVE-2026-9082
Drupal core - Highly critical - SQL injection - SA-CORE-2026-004
9.8
CVE-2018-7602
Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004
9.8
CVE-2018-7600
Drupal Core Remote Code Execution Vulnerability
8.8
CVE-2020-13671
Drupal core Un-restricted Upload of File
8.1
CVE-2019-6340
Drupal core - Highly critical - Remote Code Execution