What is the CVSS score of CVE-2025-2776?

CVE-2025-2776 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L. EPSS exploitation probability: 62.6%.

Which versions of Sysaid are affected by CVE-2025-2776?

CVE-2025-2776 presents critical security risk, a XML external entity vulnerability rated CVSS 9.3.

Is there a public PoC exploit available for CVE-2025-2776?

Yes, a public proof-of-concept exploit is available for CVE-2025-2776. Prioritise patching immediately. EPSS: 62.6%.

How to fix or mitigate CVE-2025-2776?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Monitor vendor channels for patch availability.

Sysaid CVE-2025-2776

CRITICAL

Improper Restriction of XML External Entity Reference (CWE-611)

2025-05-07 disclosure@vulncheck.com

XXE Sysaid

9.3

CVSS 3.1

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

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

DescriptionNVD

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.

CVE-2025-2776 vulnerability details – vuln.today

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Sysaid CVE-2025-2776

CVSS VectorNVD

Lifecycle Timeline

DescriptionNVD

AnalysisAI

Technical ContextAI

RemediationAI

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External POC / Exploit Code