---
id: "CVE-2025-2776"
kind: "vulnerability"
aliases: ["CVE-2025-2776"]
title: "SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "vendor"
products: [{"name": "SysAid SysAid On-Prem", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "sysaid", "fixed": [], "affected": "<= 23.3.40", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["exploited", "itsm", "on-prem", "sysaid", "vendor"]
not_affected_if: ["managed-hosting"]
published_at: "2025-05-07T15:15:57+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-2776", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-2776", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# SysAid On-Prem versions <= 23.3.40 are vulnerable to an unauthenticated XML External Entity (XXE) vulnerability in…

SysAid On-Prem has an XML external entity (XXE) flaw in its Server URL processing, which is being exploited in the wild. An attacker can take over an administrator account and read arbitrary files from the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## Affected

- vendor:SysAid SysAid On-Prem affected ? fixed ?
- vendor:sysaid affected <= 23.3.40 fixed ?

## Fix

Apply the mitigations from the vendor's instructions; CISA says to discontinue use of the product if mitigations are unavailable.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2025-2776
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-2776

## From the sources

SysAid On-Prem contains an improper restriction of XML external entity reference vulnerability in the Server URL processing functionality, allowing for administrator account takeover and file read primitives.

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.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_