CVE-2018-25031

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 42.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-03-11 · updated 2026-06-17
Weakness: CWE-20

Description

Swagger UI 4.1.2 and earlier could allow a remote attacker to conduct spoofing attacks. By persuading a victim to open a crafted URL, an attacker could exploit this vulnerability to display remote OpenAPI definitions. Note: This was originally claimed to be resolved in 4.1.3. However, third parties have indicated this is not resolved in 4.1.3 and even occurs in that version and possibly others.

Affected products

fastify-swagger-ui: before 4.1.3 — fixed in 4.1.3

How to fix

Upgrade to a fixed version: fastify-swagger-ui 4.1.3. Check the vendor advisory for mitigations.

References

https://github.com/swagger-api/swagger-ui/issues/4872
https://github.com/swagger-api/swagger-ui/releases/tag/v4.1.3
https://security.netapp.com/advisory/ntap-20220407-0004/
https://security.snyk.io/vuln/SNYK-JS-SWAGGERUI-2314885
https://github.com/swagger-api/swagger-ui/issues/4872
https://github.com/swagger-api/swagger-ui/releases/tag/v4.1.3
https://security.netapp.com/advisory/ntap-20220407-0004/
https://security.snyk.io/vuln/SNYK-JS-SWAGGERUI-2314885

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