CVE-2025-12735
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- This issue was reported by Jangwoo Choe (UKO)
- Patch validation assistance provided by GitHub user huydoppaz.
References
- https://github.com/silentmatt/expr-eval
- https://github.com/jorenbroekema/expr-eval
- https://www.npmjs.com/package/expr-eval-fork
- https://www.npmjs.com/package/expr-eval
- https://github.com/silentmatt/expr-eval/pull/288
- https://github.com/advisories/GHSA-jc85-fpwf-qm7x
- https://kb.cert.org/vuls/id/263614
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Timeline
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Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.