{"id":"CVE-2025-2775","published":"2025-05-07T15:15:57Z","modified":"2026-06-17T09:07:36Z","title":"SysAid On-Prem Improper Restriction of XML External Entity Reference Vulnerability","vendor":"SysAid","product":"SysAid On-Prem","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"SysAid On-Prem, in versions up to and including 23.3.40, contains an XML External Entity (XXE) flaw in its Checkin processing functionality. An unauthenticated remote attacker with network access can exploit it, with no user interaction or special configuration required, to take over an administrator account or read arbitrary files.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:08Z"},"cvss":{"score":7.5,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.42612,"percentile":0.98708,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-07-22","dueDate":"2025-08-12","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://documentation.sysaid.com/docs/24-40-60 ; https://nvd.nist.gov/vuln/detail/CVE-2025-2775","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-05-19","exploitedFirstSeen":"2025-05-19","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-19&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-19"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-20&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-21&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-21"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-22&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-23&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-23"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-24&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-24"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-25&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-25"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-26&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-26"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-27&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-28&host_type=src&vulnerability=cve-2025-2775","date":"2025-05-28"}],"evidenceTotal":219,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-611","name":"Improper Restriction of XML External Entity Reference"}],"references":[{"url":"https://documentation.sysaid.com/docs/24-40-60","tags":["Release Notes"]},{"url":"https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/","tags":["Exploit","Third Party Advisory"]},{"url":"https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2775","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: unauthenticated XXE in public-facing Checkin endpoint","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"unauthenticated XML External Entity (XXE) vulnerability in the Checkin processing functionality","start":56,"end":151}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local System","tactics":["collection"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: XXE yields file read primitives","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allowing for administrator account takeover and file read primitives","start":154,"end":222}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-13878","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-13878","exploited":true,"exploitedSince":"2025-07-22","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2025-03-28","earliestUrl":"https://github.com/watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain","repos":[{"name":"watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain","url":"https://github.com/watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain","stars":12,"created":"2025-03-28"}]},"nuclei":[{"id":"CVE-2025-2775","name":"SysAid On-Prem <= 23.3.40 - XML External Entity","severity":"critical","path":"http/cves/2025/CVE-2025-2775.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-2775.yaml"}],"first":{"date":"2025-03-28","source":"PoC-in-GitHub","url":"https://github.com/watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain"},"provenance":"source"},"exploitRefs":["https://labs.watchtowr.com/sysowned-your-friendly-rce-support-ticket/"],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1005"],"provenance":"ai"}],"timeline":[{"date":"2025-03-28","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/watchtowrlabs/watchTowr-vs-SysAid-PreAuth-RCE-Chain","provenance":"source"},{"date":"2025-05-07","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-2775","provenance":"source"},{"date":"2025-05-19","kind":"exploited-reported","label":"Exploitation first reported 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reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit; 1 PoC-in-GitHub repo; 1 nuclei template"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":5.25,"detail":"base score 7.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}