Vulnerability · Published Jan 30, 2026 · Assigned by GitHub_M

CVE-2026-25154LocalSend has Stored XSS in Web Share Interface via Filename

Medium 6.1

In plain English

A medium-severity cross-site scripting in localsend from localsend. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities).

Severity (CVSS 3.1)6.1Medium

Exploit odds (30 days)0.3%top 75.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

LocalSend is a free, open-source app that allows users to share files and messages with nearby devices over their local network without needing an internet connection. In versions up to and including 1.17.0, when a user initiates a "Share via Link" session, the LocalSend application starts a local HTTP server to host the selected files. The client-side logic for this web interface is contained in `app/assets/web/main.js`. Note that at [0], the `handleFilesDisplay` function constructs the HTML for the file list by iterating over the files received from the server. Commit 8f3cec85aa29b2b13fed9b2f8e499e1ac9b0504c contains a patch.

Affected products (as reported)

Vendor	Product	Versions
localsend	localsend	<= 1.17.0

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/localsend/localsend/security/advisories/GHSA-34v6-52hh-x4r4 x_refsource_CONFIRM
https://github.com/localsend/localsend/commit/8f3cec85aa29b2b13fed9b2f8e499e1ac9b0504c x_refsource_MISC