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CVE-2025-2776: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability

criticalknown exploitedpublic exploitCVE-2025-2776
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: SysAidproduct: SysAid On-PremPrivilege escalation
What
SysAid On-Prem contains an improper restriction of XML external entity reference vulnerability that allows for administrator account takeover.
Who is affected
Deployments of SysAid On-Prem that are affected by this vulnerability.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch provided by SysAid.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-07-22
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-2776

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2025-2776coverage & exploitation statusNVD · CVE.org

Recent advisories for SysAid On-Prem Improper

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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