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CVE

CVE-2025-12735

expr-eval does not restrict functions passed to the evaluate function
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CVE

CVE-2025-12735

expr-eval does not restrict functions passed to the evaluate function

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 variables object into the evaluate() function and trigger arbitrary code execution.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

https://nvd.nist.gov/vuln/detail/CVE-2025-12735, https://github.com/silentmatt/expr-eval/pull/288, https://github.com/silentmatt/expr-eval/pull/289, https://github.com/jorenbroekema/expr-eval/commit/1d71bb2ca8f98df8de00e9cc4de8fdd468a7ad43, https://github.com/jorenbroekema/expr-eval, https://github.com/jorenbroekema/expr-eval/blob/460b820ba01c5aca6c5d84a7d4f1fa5d1913c67b/test/security.js, https://github.com/silentmatt/expr-eval, https://kb.cert.org/vuls/id/263614, https://www.kb.cert.org/vuls/id/263614, https://www.npmjs.com/package/expr-eval, https://www.npmjs.com/package/expr-eval-fork

Severity

9.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
9.8
EPSS Probability
0.00063%
EPSS Percentile
0.19837%
Introduced Version
0,2.0.2,2.0.0,0.10.0,0.9.0
Fix Available
3.0.1,3.0.0

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