CVE-2026-4005 | Coachific Shortcode Plugin up to 1.0 on WordPress sanitize_text_field userhash cross site scripting

VDB-357686 · CVE-2026-4005 · GCVE-0-2026-4005 COACHIFIC SHORTCODE PLUGIN UP TO 1.0 ON WORDPRESS SANITIZE_TEXT_FIELD USERHASH CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 4.9 $0-$5k 3.92+ Summaryinfo A vulnerability classified as problematic was found in Coachific Shortcode Plugin up to 1.0 on WordPress. Affected is the function sanitize_text_field of the component Shortcode Handler. Such manipulation of the argument userhash leads to cross site scripting. This vulnerability is documented as CVE-2026-4005. The attack can be executed remotely. There is not any exploit available. Detailsinfo A vulnerability was found in Coachific Shortcode Plugin up to 1.0 on WordPress. It has been rated as problematic. Affected by this issue is the function sanitize_text_field of the component Shortcode Handler. The manipulation of the argument userhash 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. CVE summarizes: The Coachific Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'userhash' shortcode attribute in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() on the 'userhash' parameter, which strips HTML tags but does not escape characters significant in a JavaScript string context (such as double quotes, semicolons, and parentheses). The sanitized value is then directly interpolated into a JavaScript string within a tag on line 29 without any JavaScript-specific escaping (e.g., wp_json_encode() or esc_js()). 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 released by zakaria. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-4005 since 03/11/2026. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Type WordPress Plugin Name Coachific Shortcode Plugin Version 1.0 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: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 03/11/2026 CVE reserved 04/15/2026 +34 days Advisory disclosed 04/15/2026 +0 days VulDB entry created 04/15/2026 +0 days VulDB entry last update Sourcesinfo Advisory: wordfence.com Researcher: zakaria Status: Not defined CVE: CVE-2026-4005 (🔒) GCVE (CVE): GCVE-0-2026-4005 GCVE (VulDB): GCVE-100-357686 Entryinfo Created: 04/15/2026 11:46 Changes: 04/15/2026 11:46 (66) Complete: 🔍 Cache ID: 99:AD2:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸