# CVE-2026-62345: Stored XSS via Unsanitized waypoint.icon in Map Marker (insertAdjacentHTML)

Status: published. Published: 2026-11-06. Updated: 2026-11-09.

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.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- open-wanderer / wanderer: < 0.19.3 (affected). Source: CNA: GitHub_M

## Severity and prioritization

- CVSS 3.1: 7.6 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N; source: CNA: GitHub_M

- CVSS 3.1: 7.6 (high); CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N; source: NVD: security-advisories@github.com

- CISA KEV: No listing in collected sources

- EPSS: 0.26% as of 2026-11-09; percentile 17.94%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-79

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://github.com/open-wanderer/wanderer/security/advisories/GHSA-hx3v-rv4v-w875 (CNA: GitHub_M; x_refsource_CONFIRM)

- https://github.com/open-wanderer/wanderer/pull/1093 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/open-wanderer/wanderer/commit/6135332ea69a3d9a4fe1dec5af1cb1ee74f70e2b (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/open-wanderer/wanderer/releases/tag/v0.19.3 (CNA: GitHub_M; x_refsource_MISC)

- https://github.com/open-wanderer/wanderer/commit/6135332ea69a3d9a4fe1dec5af1cb1ee74f70e2b (security-advisories@github.com)

- https://github.com/open-wanderer/wanderer/pull/1093 (security-advisories@github.com)

- https://github.com/open-wanderer/wanderer/releases/tag/v0.19.3 (security-advisories@github.com)

- https://github.com/open-wanderer/wanderer/security/advisories/GHSA-hx3v-rv4v-w875 (security-advisories@github.com)

## Provenance

- CNA: GitHub_M: https://www.cve.org/CVERecord?id=CVE-2026-62345; retrieved 2026-11-09; source updated 2026-11-09

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-62345; retrieved 2026-11-10; source updated 2026-11-09

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-62345; retrieved 2026-11-09; source updated Not reported

Revision: ea9a32412832203771689369e21af82a6b8160735c4e71c30cb47ed0fd89aa3f

Canonical: https://y2.dev/cve/CVE-2026-62345

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.