{"id":"CVE-2025-12735","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-12735","generatedAt":"2026-10-28T02:21:06.474Z","title":"However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.","description":"The expr-eval library is a JavaScript expression parser and evaluator designed to safely evaluate mathematical expressions with user-defined variables. However, due to insufficient input validation, an attacker can pass a crafted context object or use MEMBER of the context object into the evaluate() function and trigger arbitrary code execution.","published":"2025-11-05T01:15:33.000Z","lastModified":"2026-10-18T21:10:00.000Z","status":"Analyzed","sourceIdentifier":"cret@cert.org","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-94"],"affected":["jorenbroekema/javascript expression evaluator","silentmatt/javascript expression evaluator"],"epss":{"score":0.01761,"percentile":0.77849,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (1.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/advisories/GHSA-jc85-fpwf-qm7x","tags":["Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://github.com/jorenbroekema/expr-eval","tags":["Product"],"source":"cret@cert.org"},{"url":"https://github.com/silentmatt/expr-eval","tags":["Product"],"source":"cret@cert.org"},{"url":"https://github.com/silentmatt/expr-eval/pull/288","tags":["Issue Tracking","Patch"],"source":"cret@cert.org"},{"url":"https://kb.cert.org/vuls/id/263614","tags":["Third Party Advisory"],"source":"cret@cert.org"},{"url":"https://www.npmjs.com/package/expr-eval","tags":["Product"],"source":"cret@cert.org"},{"url":"https://www.npmjs.com/package/expr-eval-fork","tags":["Product"],"source":"cret@cert.org"},{"url":"https://www.kb.cert.org/vuls/id/263614","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/jorenbroekema/expr-eval/blob/460b820ba01c5aca6c5d84a7d4f1fa5d1913c67b/test/security.js","tags":["Product"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-12735","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."}