SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability
SysAid — SysAid On-Prem
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.
9.3
64.4%
Vector breakdown
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- None
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
- Published
- May 7, 2025
- Modified
- Nov 19, 2025
- Added to KEV
- Jul 22, 2025
- Federal patch due
- Aug 12, 2025
CISA required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Weakness classification
Proof-of-concept & exploitation references
Weaponization
Public repositories whose name or description references CVE-2025-2776, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.
No public GitHub repositories referencing CVE-2025-2776 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.
References
How this class of flaw gets exploited
Frequently asked questions
What is CVE-2025-2776?
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.
How severe is CVE-2025-2776?
CVE-2025-2776 has a CVSS base score of 9.3 out of 10 (CVSS 3.1).
Is CVE-2025-2776 actively exploited in the wild?
Yes. CVE-2025-2776 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Jul 22, 2025, meaning CISA has confirmed evidence of active exploitation.
What is the EPSS score for CVE-2025-2776?
64.4% - meaning FIRST.org's EPSS model estimates a 64.4% probability this vulnerability will be exploited in the wild within 30 days (99% percentile among all scored CVEs).
Is there exploit tooling available for CVE-2025-2776?
Yes - a public Nuclei template referencing CVE-2025-2776 exist in public repositories we checked.
What type of vulnerability is CVE-2025-2776?
CVE-2025-2776 is classified under CWE-611 (CWE-611 Improper Restriction of XML External Entity Reference).
Cross-checked against
Impactr finds and proves whether CVE-2025-2776 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.