AIKIDO-2026-16669
cesanta.mongoose is vulnerable to Cross-Site Scripting (XSS)
54
Medium Risk
This Affects:
cesanta.mongooseTL;DR
When directory listing is enabled, filenames are placed into the listing link text without HTML-entity encoding while only the link target is URL-encoded. A file whose name contains markup causes that markup to execute when any user views the listing. This stored cross-site scripting runs in the origin of the Mongoose server. The fix HTML-escapes filenames before rendering them.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you serve directory listings with MG_ENABLE_DIRLIST enabled and untrusted input can create filenames in the served directory.
Background info
cesanta.mongoose is vulnerable to Cross-Site Scripting (XSS) in versions 7.0 - 7.21.
How to fix this
Upgrade the cesanta.mongoose library to the patch version.
Links
GitHub Release
Are You Affected?
Connect your repositories to instantly see whether vulnerable or malicious packages exist in your codebase.
Free. No credit card required.
I consent to receiving marketing communications based on Aikido’s Privacy Policy.
SOC 2Compliant
ISO 27001CompliantISO 42001Compliant
FedRAMPImplementing© All Intel data is openly available and commercially licensed.