CVE-2026-62345

HIGH 7.6

Stored XSS via Unsanitized waypoint.icon in Map Marker (insertAdjacentHTML)

CVSS Score

7.6

EPSS Score

0.0%

EPSS Percentile

0th

Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.19.3, an authenticated user can store a crafted waypoint.icon value that createMarkerFromWaypoint() passes into FontawesomeMarker, where insertAdjacentHTML inserts the unvalidated value into map marker markup. Opening the affected trail map executes attacker-controlled script in the viewer's browser, which can expose session tokens or perform actions as the victim. Federated waypoint data can also reach the sink without a local account on the receiving instance. This issue is fixed in version 0.19.3.

CWE	CWE-79
Vendor	open-wanderer
Product	wanderer
Published	Nov 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Affected Versions

open-wanderer / wanderer

< 0.19.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/open-wanderer/wanderer/security/advisories/GHSA-hx3v-rv4v-w875 github.com: https://github.com/open-wanderer/wanderer/pull/1093 github.com: https://github.com/open-wanderer/wanderer/commit/6135332ea69a3d9a4fe1dec5af1cb1ee74f70e2b github.com: https://github.com/open-wanderer/wanderer/releases/tag/v0.19.3