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Sysaid CVE-2025-2776

CRITICAL
Improper Restriction of XML External Entity Reference (CWE-611)
2025-05-07 disclosure@vulncheck.com
9.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.3 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
Low

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:40 vuln.today
Added to CISA KEV
Oct 27, 2025 - 16:58 cisa
CISA KEV
PoC Detected
Oct 27, 2025 - 16:58 vuln.today
Public exploit code
CVE Published
May 07, 2025 - 15:15 nvd
CRITICAL 9.3

DescriptionCVE.org

SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives.

AnalysisAI

SysAid On-Prem contains a second unauthenticated XXE injection in Server URL processing, providing an alternative attack path to the Checkin XXE (CVE-2025-2775) for admin takeover.

Technical ContextAI

The CWE-611 XXE in Server URL XML processing provides a second exploitation vector for file reading and admin account compromise.

RemediationAI

Apply SysAid updates addressing both XXE vulnerabilities. Implement comprehensive XML parsing hardening.

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CVE-2025-2776 vulnerability details – vuln.today

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