CVE-2025-2775

CRITICAL 9.3

⚠️ CISA KEV

SysAid On-Prem <= 23.3.40 Checkin Proceessing XML External Entity Injection

CVSS Score

9.3

EPSS Score

0.0%

EPSS Percentile

0th

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

CWE	CWE-611
Vendor	sysaid
Product	sysaid on-prem
Published	May 7, 2025
Last Updated	Nov 19, 2025

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CVSS v3 Breakdown

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

Affected Versions

SysAid / SysAid On-Prem

0 ≤ 23.3.40

References

NVD ↗ CVE.org ↗ EPSS Data ↗

documentation.sysaid.com: https://documentation.sysaid.com/docs/24-40-60 labs.watchtowr.com: https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/ cisa.gov: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2775

Credits

Sina Kheirkhah (@SinSinology) Jake Knott watchTowr