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Status published
Medium
CVE-2025-32379
XSS at ctx.redirect() function in Koajs
Vulnerability Description
Koa is expressive middleware for Node.js using ES2017 async functions. In koa < 2.16.1 and < 3.0.0-alpha.5, passing untrusted user input to ctx.redirect() even after sanitizing it, may execute javascript code on the user who use the app. This issue is patched in 2.16.1 and 3.0.0-alpha.5.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
Affected Vendor
koajs
View all reports →Affected Software
koa
Vulnerable Versions:
>= 3.0.0-alpha.0, < 3.0.0-alpha.5, < 2.16.1
Timeline
Official Publish:
April 9th, 2025
Last Modified:
April 9th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L