What’s Vulnerable › Vulnerabilities

CVE-2023-3696: Prototype Pollution in automattic/mongoose

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-07-17 · updated 2026-06-17
• Weakness: CWE-1321

Description

Prototype Pollution in GitHub repository automattic/mongoose prior to 7.3.4.

Affected products

• automattic/mongoose: before 5.13.20; from 6.0.0 before 6.11.3; from 7.0.0 before 7.3.4 — fixed in 5.13.20, 6.11.3, 7.3.4

How to fix

Upgrade to a fixed version: automattic/mongoose 5.13.20, 6.11.3, 7.3.4. Check the vendor advisory for mitigations.

References

• https://github.com/automattic/mongoose/commit/305ce4ff789261df7e3f6e72363d0703e025f80d
• https://huntr.dev/bounties/1eef5a72-f6ab-4f61-b31d-fc66f5b4b467
• https://github.com/automattic/mongoose/commit/305ce4ff789261df7e3f6e72363d0703e025f80d
• https://huntr.dev/bounties/1eef5a72-f6ab-4f61-b31d-fc66f5b4b467

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