Is there a public exploit for CVE-2025-13204?

No public exploit for CVE-2025-13204 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2025-13204?

CVE-2025-13204 scores CVSS 9.8 (v3.1), rated critical. EPSS puts the chance of exploitation in the next 30 days at 0.85%.

What does CVE-2025-13204 affect?

CVE-2025-13204 affects silentmatt expr-eval.

9.8 Critical

npm package expr-eval is vulnerable to Prototype Pollution.

CVE-2025-13204

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.

Assessment

CVSS: 9.8 (v3.1)
Severity: Critical
EPSS: 0.85% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 14 November 2025
Last updated: 30 October 2026
Affected: silentmatt · expr-eval
Weakness: CWE-1321
Assigner: cret@cert.org

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

At the source

References

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