Cross-site scripting in hupe13 DSGVO snippet for Leaflet Map and its Extensions
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
The DSGVO snippet for Leaflet Map and its Extensions plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `leafext-cookie-time` and `leafext-delete-cookie` shortcodes in all versions up to, and including, 3.1. This is due to insufficient input sanitization and output escaping on user supplied attributes (`unset`, `before`, `after`). This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4389
- 2026-10-03 Alias added: GHSA-p529-4vj7-h7jm
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dfeaff92-165a-4006-8e52-a99ae6b68dd9?source=cve
- https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/trunk/php/time-delete.php#L35
- https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.1/php/time-delete.php#L35
- https://plugins.trac.wordpress.org/browser/dsgvo-leaflet-map/tags/3.4
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3489426%40dsgvo-leaflet-map%2Ftrunk&old=3488424%40dsgvo-leaflet-map%2Ftrunk&sfp_email=&sfph_mail=
More hupe13 vulnerabilities
- TI-2026-41317 WordPress Extensions for Leaflet Map plugin <= 5.1 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2023-14800 WordPress Extensions for Leaflet Map Plugin <= 3.4.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1HIGH 7.1
- TI-2026-79243 Stored cross-site scripting in Extensions for Leaflet Map plugin CVSS 3.1MEDIUM 6.5
- TI-2026-04773 Cross-site scripting in hupe13 Extensions for Leaflet Map CVSS 3.1MEDIUM 6.4
- TI-2025-40618 WordPress Extensions for Leaflet Map plugin <= 4.8 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
- TI-2025-11346 Extensions for Leaflet Map <= 4.7 - Authenticated (Contributor+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 6.4
Sources
- CVE-2026-4389 · CVE Program
- CVE-2026-4389 · NVD
- FIRST EPSS
- GHSA-p529-4vj7-h7jm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences