Vulnerability · Published Jan 8, 2026 · Assigned by GitHub_M
CVE-2026-22257Salvo is vulnerable to stored XSS in the list_html function by uploading files with malicious names
High 8.8
In plain English
A high-severity cross-site scripting in salvo from salvo-rs. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 73.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Salvo is a Rust web backend framework. Prior to version 0.88.1, the function list_html generates a file view of a folder without sanitizing the files or folders names, this may potentially lead to XSS in cases where a website allow the access to public files using this feature and anyone can upload a file. This issue has been patched in version 0.88.1.
Affected products (as reported)
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:L