CVE-2025-2776
CRITICALCVE-2025-2776 is a critical-severity (CVSS 9.3) XML External Entity (XXE) vulnerability. It is in CISA's Known Exploited Vulnerabilities catalog (added 2025-07-22) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
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…
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2025-07-22. Federal agencies were required to remediate by 2025-08-12.
- CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2025-2776.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2025-2776 by exploitation likelihood (EPSS) against impact (CVSS). In the shaded patch-first corner (EPSS 50%+, CVSS 7.0+).
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the 50–90% band (highlighted). Counts from FIRST.org, log-scaled.
Description
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.
Affected Products
sysaidsysaidDetection & mitigation playbook
VulnerabilityDetect
Identify every host running the affected component and compare the installed build against the fixed version below — for source-built or distro-packaged software the version string, not a lockfile, is the source of truth (`dpkg -l`, `rpm -q`, or the binary's own `--version`).
Remediation status
No fixed release is recorded for CVE-2025-2776 yet. Track the upstream advisory, and apply the exposure-reduction steps below in the meantime.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How to detect CVE-2025-2776
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2025-2776 -u https://target- Template
- SysAid On-Prem <= 23.3.40 - XML External Entity
- Severity
- critical
- Impact
- Unauthenticated attackers can exploit XXE vulnerabilities in the Server URL endpoint to read arbitrary files, potentially leading to administrator account takeover and complete system compromise.
- Remediation
- Upgrade to SysAid On-Prem version 24.40.60 or later that properly disables external entity processing.
Template by ProjectDiscovery nuclei-templates (johnk3r), MIT licensed. View the full template. Scan only systems you are authorised to test.
Frequently Asked Questions
Is CVE-2025-2776 in your dependencies?
Find it across , including transitive dependencies.