CVE-2026-1554

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 v3 4.2 MEDIUM

4.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.drupal.org/sa-contrib-2026-007	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:jtenman:central_authentication_system_server::::::drupal::*
	cpe:2.3:a:jtenman:central_authentication_system_server::::::drupal::*

History

17 Jun 2026, 10:16

Type	Values Removed	Values Added
Summary		(es) Inyección XML (también conocida como Inyección XPath Ciega) vulnerabilidad en el servidor del Sistema de Autenticación Central (CAS) de Drupal permite la escalada de privilegios. Este problema afecta al servidor del Sistema de Autenticación Central (CAS): desde 0.0.0 anterior a 2.0.3, desde 2.1.0 anterior a 2.1.2.

11 Feb 2026, 19:18

Type	Values Removed	Values Added
References	~~() https://www.drupal.org/sa-contrib-2026-007 -~~	() https://www.drupal.org/sa-contrib-2026-007 - Vendor Advisory
CPE		cpe:2.3:a:jtenman:central_authentication_system_server::::::drupal::*
First Time		Jtenman Jtenman central Authentication System Server

05 Feb 2026, 16:15

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.2

04 Feb 2026, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-04 21:15

Updated : 2026-06-17 10:16

NVD link : CVE-2026-1554

Mitre link : CVE-2026-1554

CVE.ORG link : CVE-2026-1554

JSON object : View

Products Affected

jtenman

central_authentication_system_server

CWE

CWE-91

XML Injection (aka Blind XPath Injection)

{"id": "CVE-2026-1554", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-1554", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-05T15:14:46.442485Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.2, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 1.6}]}, "affected": [{"source": "mlhess@drupal.org", "affectedData": [{"repo": "https://git.drupalcode.org/project/cas_server", "vendor": "Drupal", "product": "Central Authentication System (CAS) Server", "versions": [{"status": "affected", "version": "0.0.0", "lessThan": "2.0.3", "versionType": "semver"}, {"status": "affected", "version": "2.1.0", "lessThan": "2.1.2", "versionType": "semver"}], "collectionURL": "https://www.drupal.org/project/cas_server", "defaultStatus": "unaffected"}]}], "published": "2026-02-04T21:15:59.427", "references": [{"url": "https://www.drupal.org/sa-contrib-2026-007", "tags": ["Vendor Advisory"], "source": "mlhess@drupal.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "mlhess@drupal.org", "description": [{"lang": "en", "value": "CWE-91"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Inyecci\u00f3n XML (tambi\u00e9n conocida como Inyecci\u00f3n XPath Ciega) vulnerabilidad en el servidor del Sistema de Autenticaci\u00f3n Central (CAS) de Drupal permite la escalada de privilegios. Este problema afecta al servidor del Sistema de Autenticaci\u00f3n Central (CAS): desde 0.0.0 anterior a 2.0.3, desde 2.1.0 anterior a 2.1.2."}], "lastModified": "2026-06-17T10:16:03.767", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:jtenman:central_authentication_system_server:*:*:*:*:*:drupal:*:*", "vulnerable": true, "matchCriteriaId": "667508E4-C557-47F0-8038-58B3CAF1851E", "versionEndExcluding": "2.0.3"}, {"criteria": "cpe:2.3:a:jtenman:central_authentication_system_server:*:*:*:*:*:drupal:*:*", "vulnerable": true, "matchCriteriaId": "1925AABB-E45D-40EC-9357-07091200BF4B", "versionEndExcluding": "2.1.2", "versionStartIncluding": "2.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "mlhess@drupal.org"}