{"id":"CVE-2023-45727","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-45727","generatedAt":"2026-10-31T10:24:32.434Z","title":"North Grid Proself Improper Restriction of XML External Entity (XXE) Reference Vulnerability","description":"Proself Enterprise/Standard Edition Ver5.62 and earlier, Proself Gateway Edition Ver1.65 and earlier, and Proself Mail Sanitize Edition Ver1.08 and earlier allow a remote unauthenticated attacker to conduct XML External Entity (XXE) attacks. By processing a specially crafted request containing malformed XML data, arbitrary files on the server containing account information may be read by the attacker.","published":"2023-10-18T10:15:09.000Z","lastModified":"2026-06-17T06:29:25.000Z","status":"Analyzed","sourceIdentifier":"vultures@jpcert.or.jp","cvss":{"version":"3.1","score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-611"],"affected":["northgrid/proself"],"epss":{"score":0.04822,"percentile":0.91967,"date":"2026-10-30","history":[{"date":"2026-10-19","score":0.04822,"percentile":0.91882}]},"kev":{"listed":true,"dateAdded":"2024-12-03","dueDate":"2024-12-24","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.\nhttps://www.proself.jp/information/153/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-45727"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 24 December 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://jvn.jp/en/jp/JVN95981460/","tags":["Third Party Advisory"],"source":"vultures@jpcert.or.jp"},{"url":"https://www.proself.jp/information/153/","tags":["Vendor Advisory"],"source":"vultures@jpcert.or.jp"},{"url":"https://jvn.jp/en/jp/JVN95981460/","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.proself.jp/information/153/","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-45727","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-45727","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}