CVE-2025-2775 — SYSAID
CRITICALCVE-2025-2775 is a critical-severity (CVSS 9.3) XML External Entity (XXE) vulnerability in sysaid sysaid. 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 Checkin 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-2025-2775.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2025-2775 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 395,249 CVEs with a current EPSS score, this one falls in the 10–50% 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 Checkin processing functionality, allowing for administrator account takeover and file read primitives.
Affected Products
sysaidsysaidResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every sysaid sysaid deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2025-2775 yet — track the sysaid sysaid advisory for a fixed release and apply the workarounds 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. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
How to detect CVE-2025-2775
A community-maintained Nuclei template exists for this CVE. You can scan for it directly:
nuclei -id cve-2025-2775 -u https://target- Template
- SysAid On-Prem <= 23.3.40 - XML External Entity
- Severity
- critical
- Impact
- Unauthenticated attackers can exploit XXE vulnerabilities in the Checkin 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-2025-2775 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.