Vulnerability-Lookup

CVE-2025-13204 (GCVE-0-2025-13204)

Vulnerability from cvelistv5 – Published: 2025-11-14 17:02 – Updated: 2025-11-14 20:41

Title

CVE-2025-13204

Summary

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.

Severity

7.3 (High)


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

SSVC

Exploitation: Public PoC Automatable: Yes Technical Impact: Total

certcc (v2.0.0)

Decision recorded 2025-11-07 15:47 UTC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-11-14 20:36 UTC

CWE

CWE-1321 Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

Assigner

certcc mitre root

References

7 references

URL	Tags
https://www.npmjs.com/package/expr-eval-fork
https://github.com/silentmatt/expr-eval
https://github.com/jorenbroekema/expr-eval
https://www.huntr.dev/bounties/1-npm-expr-eval/	third-party-advisory
https://github.com/SECCON/SECCON2022_final_CTF/bl…
https://github.com/silentmatt/expr-eval/pull/252/files	patch
https://github.com/vladko312/extras/blob/f549d505…	exploit

Impacted products

1 product

Vendor	Product	Version	CPE status
silentmatt	expr-eval	Affected: 0 , ≤ 2.0.2 (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-13204

Vulnerability from fkie_nvd - Published: 2025-11-14 17:16 - Updated: 2026-06-17 08:33

Severity

7.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Summary

References

URL	Tags
cret@cert.org	https://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.py	Product
cret@cert.org	https://github.com/jorenbroekema/expr-eval	Product
cret@cert.org	https://github.com/silentmatt/expr-eval	Product
cret@cert.org	https://github.com/silentmatt/expr-eval/pull/252/files	Issue Tracking, Patch
cret@cert.org	https://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.py	Product
cret@cert.org	https://www.huntr.dev/bounties/1-npm-expr-eval/	Exploit, Third Party Advisory
cret@cert.org	https://www.npmjs.com/package/expr-eval-fork	Product

Impacted products

	Vendor	Product	Version
	silentmatt	javascript_expression_evaluator	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "expr-eval",
          "vendor": "silentmatt",
          "versions": [
            {
              "lessThanOrEqual": "2.0.2",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "cret@cert.org"
    }
  ],
  "configurations": [
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    }
  ],
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  "lastModified": "2026-06-17T08:33:40.803",
  "metrics": {
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GHSA-8GW3-RXH4-V6JX

Vulnerability from github – Published: 2025-11-14 18:31 – Updated: 2025-11-17 18:39

Summary

expr-eval vulnerable to Prototype Pollution

Details

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.

Severity

7.3 (High)


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

Show details on source website

JSON

To clipboard

{
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        "name": "expr-eval"
      },
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              "introduced": "0"
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          ],
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        }
      ]
    },
    {
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        "ecosystem": "npm",
        "name": "expr-eval-fork"
      },
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        }
      ]
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  ],
  "aliases": [
    "CVE-2025-13204"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1321"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-11-17T18:39:19Z",
    "nvd_published_at": "2025-11-14T17:16:01Z",
    "severity": "HIGH"
  },
  "details": "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.",
  "id": "GHSA-8gw3-rxh4-v6jx",
  "modified": "2025-11-17T18:39:19Z",
  "published": "2025-11-14T18:31:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13204"
    },
    {
      "type": "WEB",
      "url": "https://github.com/silentmatt/expr-eval/pull/252/files"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jorenbroekema/expr-eval/commit/6c475a118643ae0efe012de283e932fb8b74324b"
    },
    {
      "type": "WEB",
      "url": "https://github.com/silentmatt/expr-eval/commit/6e889e0e75c50ac37d70c35388602025650e0c50"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SECCON/SECCON2022_final_CTF/blob/main/jeopardy/web/babybox/solver/solver.py"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jorenbroekema/expr-eval"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/silentmatt/expr-eval"
    },
    {
      "type": "WEB",
      "url": "https://github.com/vladko312/extras/blob/f549d505af300fd74a01b46fab2102990ff1c14d/expr-eval.py"
    },
    {
      "type": "WEB",
      "url": "https://www.huntr.dev/bounties/1-npm-expr-eval"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/package/expr-eval-fork"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "expr-eval vulnerable to Prototype Pollution"
}

RHSA-2026:0140

Vulnerability from csaf_redhat - Published: 2026-01-06 17:13 - Updated: 2026-04-15 16:23

Summary

Red Hat Security Advisory: grafana-pcp security update

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2025-13204.

CVE-2025-13204

A prototype pollution flaw was found in expr-eval. An attacker with access to express eval interface can use JavaScript prototype-based inheritance model to achieve arbitrary code execution.

7.3 (High)


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

Fixed: 2 products

https://access.redhat.com/errata/RHSA-2026:0140

Open the full advisory

WID-SEC-W-2026-0021

Vulnerability from csaf_certbund - Published: 2026-01-06 23:00 - Updated: 2026-01-06 23:00

Summary

Red Hat Enterprise Linux (npm expr-eval): Schwachstelle ermöglicht Codeausführung

Severity

Mittel

Scope

1 vulnerability in this advisory, including CVE-2025-13204.

CVE-2025-13204

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2025-13204 (GCVE-0-2025-13204)

FKIE_CVE-2025-13204

GHSA-8GW3-RXH4-V6JX

RHSA-2026:0140

WID-SEC-W-2026-0021

Tags

Sightings

Nomenclature

Related by attack behaviour