CVE-2026-1554 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Drupal	Central Authentication System (cas) Server

No data.

No data.

References

Link	Providers
https://www.spirityenterprise.com/pentest
https://www.spirityenterprise.com/virtual-ciso
https://www.drupal.org/sa-contrib-2026-007

History

Thu, 05 Feb 2026 16:15:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 05 Feb 2026 11:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Drupal Drupal central Authentication System (cas) Server
Vendors & Products		Drupal Drupal central Authentication System (cas) Server

Wed, 04 Feb 2026 20:45:00 +0000

Type	Values Removed	Values Added
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.
Title		Central Authentication System (CAS) Server - Less critical - XML Element Injection - SA-CONTRIB-2026-007
Weaknesses		CWE-91
References		https://www.drupal.org/sa-contrib-2026-007

MITRE

Status: PUBLISHED

Assigner: drupal

Published: 2026-02-04T20:26:38.850Z

Updated: 2026-02-05T15:15:29.323Z

Reserved: 2026-01-28T17:01:09.595Z

Link: CVE-2026-1554

Vulnrichment

Updated: 2026-02-05T15:12:53.540Z

NVD

Status : Awaiting Analysis

Published: 2026-02-04T21:15:59.427

Modified: 2026-02-05T16:15:51.100

Link: CVE-2026-1554

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-1554", "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "state": "PUBLISHED", "assignerShortName": "drupal", "dateReserved": "2026-01-28T17:01:09.595Z", "datePublished": "2026-02-04T20:26:38.850Z", "dateUpdated": "2026-02-05T15:15:29.323Z"}, "containers": {"cna": {"affected": [{"collectionURL": "https://www.drupal.org/project/cas_server", "defaultStatus": "unaffected", "product": "Central Authentication System (CAS) Server", "repo": "https://git.drupalcode.org/project/cas_server", "vendor": "Drupal", "versions": [{"lessThan": "2.0.3", "status": "affected", "version": "0.0.0", "versionType": "semver"}, {"lessThan": "2.1.2", "status": "affected", "version": "2.1.0", "versionType": "semver"}]}], "credits": [{"lang": "en", "type": "finder", "value": "Ga\u00c3\u00abl Gosset (ga\u00c3\u00ablg)"}, {"lang": "en", "type": "remediation developer", "value": "Ted Cooper (elc)"}, {"lang": "en", "type": "remediation developer", "value": "Ga\u00c3\u00abl Gosset (ga\u00c3\u00ablg)"}, {"lang": "en", "type": "remediation developer", "value": "Jaap Jansma (jaapjansma)"}, {"lang": "en", "type": "coordinator", "value": "Greg Knaddison (greggles)"}, {"lang": "en", "type": "coordinator", "value": "Juraj Nemec (poker10)"}], "datePublic": "2026-01-28T17:29:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "XML Injection (aka Blind XPath Injection) vulnerability in Drupal Central Authentication System (CAS) Server allows Privilege Escalation.<p>This issue affects Central Authentication System (CAS) Server: from 0.0.0 before 2.0.3, from 2.1.0 before 2.1.2.</p>"}], "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."}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-91", "description": "CWE-91 XML Injection (aka Blind XPath Injection)", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "shortName": "drupal", "dateUpdated": "2026-02-04T20:26:38.850Z"}, "references": [{"url": "https://www.drupal.org/sa-contrib-2026-007"}], "source": {"discovery": "UNKNOWN"}, "title": "Central Authentication System (CAS) Server - Less critical - XML Element Injection - SA-CONTRIB-2026-007", "x_generator": {"engine": "Vulnogram 0.5.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"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"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-02-05T15:14:46.442485Z", "id": "CVE-2026-1554", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-05T15:15:29.323Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"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"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-1554", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-02-05T15:14:46.442485Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-05T15:12:53.540Z"}}], "cna": {"title": "Central Authentication System (CAS) Server - Less critical - XML Element Injection - SA-CONTRIB-2026-007", "source": {"discovery": "UNKNOWN"}, "credits": [{"lang": "en", "type": "finder", "value": "Ga\u00c3\u00abl Gosset (ga\u00c3\u00ablg)"}, {"lang": "en", "type": "remediation developer", "value": "Ted Cooper (elc)"}, {"lang": "en", "type": "remediation developer", "value": "Ga\u00c3\u00abl Gosset (ga\u00c3\u00ablg)"}, {"lang": "en", "type": "remediation developer", "value": "Jaap Jansma (jaapjansma)"}, {"lang": "en", "type": "coordinator", "value": "Greg Knaddison (greggles)"}, {"lang": "en", "type": "coordinator", "value": "Juraj Nemec (poker10)"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "affected": [{"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"}], "datePublic": "2026-01-28T17:29:00.000Z", "references": [{"url": "https://www.drupal.org/sa-contrib-2026-007"}], "x_generator": {"engine": "Vulnogram 0.5.0"}, "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.", "supportingMedia": [{"type": "text/html", "value": "XML Injection (aka Blind XPath Injection) vulnerability in Drupal Central Authentication System (CAS) Server allows Privilege Escalation.<p>This issue affects Central Authentication System (CAS) Server: from 0.0.0 before 2.0.3, from 2.1.0 before 2.1.2.</p>", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-91", "description": "CWE-91 XML Injection (aka Blind XPath Injection)"}]}], "providerMetadata": {"orgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "shortName": "drupal", "dateUpdated": "2026-02-04T20:26:38.850Z"}}}, "cveMetadata": {"cveId": "CVE-2026-1554", "state": "PUBLISHED", "dateUpdated": "2026-02-05T15:15:29.323Z", "dateReserved": "2026-01-28T17:01:09.595Z", "assignerOrgId": "2c85b837-eb8b-40ed-9d74-228c62987387", "datePublished": "2026-02-04T20:26:38.850Z", "assignerShortName": "drupal"}, "dataVersion": "5.2"}