CVE-2026-6439 | jconti VideoZen Plugin up to 1.0.1 on WordPress Setting videozen_conf lang cross site scripting

VDB-358053 · CVE-2026-6439 · GCVE-0-2026-6439 JCONTI VIDEOZEN PLUGIN UP TO 1.0.1 ON WORDPRESS SETTING VIDEOZEN_CONF LANG CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.3 $0-$5k 3.90+ Summaryinfo A vulnerability has been found in jconti VideoZen Plugin up to 1.0.1 on WordPress and classified as problematic. This vulnerability affects the function videozen_conf of the component Setting Handler. Performing a manipulation of the argument lang results in cross site scripting. This vulnerability was named CVE-2026-6439. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded. Detailsinfo A vulnerability was found in jconti VideoZen Plugin up to 1.0.1 on WordPress. It has been classified as problematic. This affects the function videozen_conf of the component Setting Handler. The manipulation of the argument lang with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is: The VideoZen plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 1.0.1. This is due to insufficient input sanitization and output escaping in the videozen_conf() function. The 'lang' POST parameter is stored directly via update_option() without any sanitization, and later echoed inside a element without applying esc_textarea() or any equivalent escaping function. This makes it possible for authenticated attackers with Administrator-level access and above to inject arbitrary web scripts into the plugin settings page that will execute whenever any user accesses that page. The weakness was presented by Muhammad Nur Ibnu Hubab. The advisory is shared at wordfence.com. This vulnerability is uniquely identified as CVE-2026-6439 since 04/16/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. 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 1.0.1 eliminates this vulnerability. Productinfo Type WordPress Plugin Vendor jconti Name VideoZen Plugin Version 1.0.0 1.0.1 CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.4 VulDB Meta Temp Score: 3.3 VulDB Base Score: 2.4 VulDB Temp Score: 2.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.4 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: VideoZen Plugin 1.0.1 Timelineinfo 04/16/2026 CVE reserved 04/17/2026 +1 days Advisory disclosed 04/17/2026 +0 days VulDB entry created 04/17/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: Muhammad Nur Ibnu Hubab Status: Confirmed CVE: CVE-2026-6439 (🔒) GCVE (CVE): GCVE-0-2026-6439 GCVE (VulDB): GCVE-100-358053 Entryinfo Created: 04/17/2026 11:49 Changes: 04/17/2026 11:49 (69) Complete: 🔍 Cache ID: 99:E65:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸