CVE-2026-62346 · Package
NO FIX YET · SEE WHAT TO DO
Wanderer, a self-hosted trail database, inserts waypoint name and icon values into an elevation graph without HTML encoding. A crafted waypoint runs attacker script in the browser of anyone who views the elevation profile, which can expose session data or act as the victim.
first public Jul 2, 2026 · 1 source
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Self-hosted Wanderer instances before 0.19.3 are exposed. The attacker needs a local account to submit a crafted waypoint, but federated waypoints can deliver the same fields from other instances without a local account on the receiving instance. Instances with federation disabled and only trusted local users are less exposed.
Not affected if federation-disabled-and-trusted-users-only, wanderer-0.19.3-or-later
Who cares federation, self-hosted, wanderer
0.19.3 are affected.name or icon values that contain HTML or script.0.19.3 or later.Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.19.3, an authenticated local user can submit crafted waypoint.name and waypoint.icon values that the trail elevation graph interpolates into an innerHTML template in web/src/lib/vendor/maplibre-elevation-profile/elevationprofile.ts without HTML encoding or icon validation. A victim viewing the elevation profile executes the attacker-controlled script in their browser. Separately, federated waypoints can deliver the same malicious fields across instances without requiring the attacker to have a local account on the receiving instance. The script can expose session data or perform actions in the victim's context. This issue is fixed in version 0.19.3.
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