# CVE-2025-2775: SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability

- Exploited (CISA KEV): yes, added 2025-07-22
- Published: 2025-05-07
- CVSS: 9.3 CRITICAL (v3.1)
- EPSS: 42.6% (99th percentile)
- CWE: CWE-611

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2025-06-30 | 54 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2025-06-30 · new · rule 200018192
  > Added: signature 200018192 "SysAid ITSM XXE (2)" (Other Application Attacks, risk High), systems: System Independent. References: CVE-2025-2775, CVE-2025-2776, CVE-2025-2777.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog
- 2025-06-30 · new · rule 200018193
  > Added: signature 200018193 "SysAid ITSM XXE" (Other Application Attacks, risk High), systems: System Independent. References: CVE-2025-2775, CVE-2025-2776, CVE-2025-2777.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: passed (0 of 1 requests blocked), template CVE-2025-2775, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: passed (0 of 1 requests blocked), template CVE-2025-2775, 2026-11-02

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-2775 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-2775