CVE-2024-27920
CVE-2024-27920 is a high-severity vulnerability in Projectdiscovery Nuclei with a CVSS 3.x base score of 7.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.
Key facts
- Severity: High (CVSS 3.x base score 7.4)
- EPSS exploit prediction: 0% (34th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-1023
- Weakness: CWE-78
- Affected product: Projectdiscovery Nuclei
- Published:
- Last modified:
Description
projectdiscovery/nuclei is a fast and customisable vulnerability scanner based on simple YAML based DSL. A significant security oversight was identified in Nuclei v3, involving the execution of unsigned code templates through workflows. This vulnerability specifically affects users utilizing custom workflows, potentially allowing the execution of malicious code on the user's system. This advisory outlines the impacted users, provides details on the security patch, and suggests mitigation strategies. The vulnerability is addressed in Nuclei v3.2.0. Users are strongly recommended to update to this version to mitigate the security risk. Users should refrain from using custom workflows if unable to upgrade immediately. Only trusted, verified workflows should be executed.
Frequently asked questions
- What is CVE-2024-27920?
- projectdiscovery/nuclei is a fast and customisable vulnerability scanner based on simple YAML based DSL. A significant security oversight was identified in Nuclei v3, involving the execution of unsigned code templates through workflows. This vulnerability specifically affects users utilizing custom workflows, potentially allowing the execution of malicious code on the user's system. This advisory outlines the impacted users, provides details on the security patch, and suggests mitigation strategies. The vulnerability is addressed in Nuclei v3.2.0. Users are strongly recommended to update to this version to mitigate the security risk. Users should refrain from using custom workflows if unable to upgrade immediately. Only trusted, verified workflows should be executed.
- How severe is CVE-2024-27920?
- CVE-2024-27920 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over local access with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
- Is CVE-2024-27920 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-27920?
- CVE-2024-27920 affects Projectdiscovery Nuclei. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-27920?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-27920 have an EU (EUVD) identifier?
- Yes. CVE-2024-27920 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-1023.
- When was CVE-2024-27920 published?
- CVE-2024-27920 was published on 2024-03-15 and last updated on 2026-06-17.
References
- https://docs.projectdiscovery.io/templates/protocols/code
- https://docs.projectdiscovery.io/templates/reference/template-signing
- https://docs.projectdiscovery.io/templates/workflows/overview
- https://github.com/projectdiscovery/nuclei/pull/4822
- https://github.com/projectdiscovery/nuclei/security/advisories/GHSA-w5wx-6g2r-r78q
Affected products (1)
- cpe:2.3:a:projectdiscovery:nuclei:*:*:*:*:*:*:*:*
More vulnerabilities in Projectdiscovery Nuclei
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- CVE-2026-41646 — Medium (CVSS 5.5): Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From version 3.0.0 to before version 3.8.0, a…
- CVE-2026-41645 — Medium (CVSS 5.3): Nuclei is a vulnerability scanner built on a simple YAML-based DSL. From version 3.0.0 to before version 3.8.0, a…
- CVE-2026-41282 — Medium (CVSS 4.0): ProjectDiscovery Nuclei 3 before 3.8.0 allows DSL expression injection. This affects use of -env-vars for multi-step…
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