{"id":"CVE-2025-2776","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 Server URL processing functionality, allowing for administrator account takeover and file read primitives.","provenance":"source","from":"NVD"},"summary":{"text":"SysAid On-Prem contains an XML External Entity (XXE) flaw in its Server URL processing functionality, which is a weakness in how the product restricts external entity references in XML it parses. An unauthenticated remote attacker with network access can exploit it without user interaction to take over an administrator account and read files from the server.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:09:58Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.64726,"percentile":0.99241,"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-2025-2776","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-05-14","exploitedFirstSeen":"2025-05-14","ransomware":false,"evidence":[{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-14&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-14"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-15&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-15"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-16&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-16"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-17&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-17"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-18&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-18"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-19&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-19"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-20&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-20"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-21&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-21"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-22&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-23&host_type=src&vulnerability=cve-2025-2776","date":"2025-05-23"}],"evidenceTotal":230,"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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-2776","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 web server","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"unauthenticated XML External Entity (XXE) vulnerability in the Server URL processing functionality","start":56,"end":154}],"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 enables arbitrary file read","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allowing for administrator account takeover and file read primitives","start":156,"end":224}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2025-13875","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-13875","exploited":true,"exploitedSince":"2025-07-22","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2025-08-31","earliestUrl":"https://github.com/mrk336/From-EternalBlue-to-CVE-2025-2776-The-Evolution-of-an-SMB-Attack","repos":[{"name":"mrk336/From-EternalBlue-to-CVE-2025-2776-The-Evolution-of-an-SMB-Attack","url":"https://github.com/mrk336/From-EternalBlue-to-CVE-2025-2776-The-Evolution-of-an-SMB-Attack","stars":0,"created":"2025-08-31"}]},"nuclei":[{"id":"CVE-2025-2776","name":"SysAid On-Prem <= 23.3.40 - XML External 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ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.85,"detail":"percentile 0.9924"},{"name":"Named in threat reports","points":0.0,"detail":"0 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":6.86,"detail":"base score 9.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}