Salvo
CVE-2026-22256
HIGH
GHSA-rjf8-2wcw-f6mp
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
4DescriptionGitHub Advisory
Salvo is a Rust web backend framework. Prior to version 0.88.1, the function list_html generate an file view of a folder which include a render of the current path, in which its inserted in the HTML without proper sanitation, this leads to reflected XSS using the fact that request path is decoded and normalized in the matching stage but not is inserted raw in the html view (current.path), the only constraint here is for the root path (eg. /files in the PoC example) to have a sub directory (e.g common ones styles/scripts/etc…) so that the matching return the list HTML page instead of the Not Found page. This issue has been patched in version 0.88.1.
AnalysisAI
Salvo is a Rust web backend framework. [CVSS 8.8 HIGH]
Technical ContextAI
Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Salvo. Salvo is a Rust web backend framework. Prior to version 0.88.1, the function list_html generate an file view of a folder which include a render of the current path, in which its inserted in the HTML without proper sanitation, this leads to reflected XSS using the fact that request path is decoded and normalized in the matching stage but not is inserted raw in the html view (current.path), the only constraint here is for the root path (eg. /files in the PoC example) to have a sub directory (e.g c
RemediationAI
A vendor patch is available — apply it immediately. Fixed in version 0.88.1.. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.
Same weakness CWE-79 – Cross-site Scripting (XSS)
View allShare
External POC / Exploit Code
Leaving vuln.today