CVE-2025-13204: high-severity vulnerability in silentmatt expr-eval
CVE-2025-13204
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.3epss 0.5%
exploitation probability
0.5%top 63% of all CVEs
observed exploitation
nono source reports it
npm package `expr-eval` is vulnerable to Prototype Pollution. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution. The npm expr-eval-fork package resolves this issue.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Affected products
silentmatt · expr-evalRelated CVEs — silentmatt expr-eval
In the same product, most dangerous first.
References
https://github.com/jorenbroekema/expr-evalhttps://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.pyhttps://github.com/silentmatt/expr-evalhttps://github.com/silentmatt/expr-eval/pull/252/fileshttps://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.pyhttps://www.huntr.dev/bounties/1-npm-expr-eval/https://www.npmjs.com/package/expr-eval-fork