CVE-2026-4389 | hupe13 DSGVO Snippet for Leaflet Map and its Extensions Plugin Shortcode leafext-cookie-time/leafext-delete-cookie cross site scripting

VDB-353549 · CVE-2026-4389 · GCVE-0-2026-4389 HUPE13 DSGVO SNIPPET FOR LEAFLET MAP AND ITS EXTENSIONS PLUGIN SHORTCODE LEAFEXT-COOKIE-TIME/LEAFEXT-DELETE-COOKIE CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 2.25+ Summaryinfo A vulnerability was found in hupe13 DSGVO Snippet for Leaflet Map and its Extensions Plugin up to 3.1 on WordPress. It has been rated as problematic. This impacts the function leafext-cookie-time/leafext-delete-cookie of the component Shortcode Handler. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2026-4389. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised. Detailsinfo A vulnerability, which was classified as problematic, has been found in hupe13 DSGVO Snippet for Leaflet Map and its Extensions Plugin up to 3.1 on WordPress. This issue affects the function leafext-cookie-time/leafext-delete-cookie of the component Shortcode Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is: 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. The weakness was shared by Djaidja Moundjid. The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-4389 since 03/18/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. Upgrading to version 3.1 eliminates this vulnerability. Productinfo Type WordPress Plugin Vendor hupe13 Name DSGVO Snippet for Leaflet Map and its Extensions Plugin Version 3.0 3.1 CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 4.9 VulDB Meta Temp Score: 4.9 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 6.4 CNA Vector (Wordfence): 🔒 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: DSGVO Snippet for Leaflet Map and its Extensions Plugin 3.1 Timelineinfo 03/18/2026 CVE reserved 03/26/2026 +8 days Advisory disclosed 03/26/2026 +0 days VulDB entry created 03/26/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Djaidja Moundjid Status: Confirmed CVE: CVE-2026-4389 (🔒) GCVE (CVE): GCVE-0-2026-4389 GCVE (VulDB): GCVE-100-353549 Entryinfo Created: 03/26/2026 07:01 Changes: 03/26/2026 07:01 (68) Complete: 🔍 Cache ID: 99:4C0:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸