CVE-2026-39391 | ci4-cms-erp ci4ms 0.28.5.0/0.31.0.0/0.31.2.0 ajax_blackList_post note cross site scripting (GHSA-7cm9-v848-cfh2)

VDB-356256 · CVE-2026-39391 · GHSA-7CM9-V848-CFH2 CI4-CMS-ERP CI4MS 0.28.5.0/0.31.0.0/0.31.2.0 AJAX_BLACKLIST_POST NOTE CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 0.75+ Summaryinfo A vulnerability described as problematic has been identified in ci4-cms-erp ci4ms. Affected is the function UserController::ajax_blackList_post. The manipulation of the argument note results in cross site scripting. This vulnerability is identified as CVE-2026-39391. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended. Detailsinfo A vulnerability classified as problematic has been found in ci4-cms-erp ci4ms. Affected is the function UserController::ajax_blackList_post. The manipulation of the argument note 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. CVE summarizes: CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to 0.31.4.0, the blacklist (ban) note parameter in UserController::ajax_blackList_post() is stored in the database without sanitization and rendered into an HTML data-note attribute without escaping. An admin with blacklist privileges can inject arbitrary JavaScript that executes in the browser of any other admin who views the user management page. This vulnerability is fixed in 0.31.4.0. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-39391 since 04/07/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007. Upgrading to version 0.31.4.0 eliminates this vulnerability. Productinfo Type Content Management System Vendor ci4-cms-erp Name ci4ms Version 0.28.5.0 0.31.0.0 0.31.2.0 Website Product: https://github.com/ci4-cms-erp/ci4ms/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.6 VulDB Meta Temp Score: 3.5 VulDB Base Score: 2.4 VulDB Temp Score: 2.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.8 CNA Vector (GitHub_M): 🔒 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: ci4ms 0.31.4.0 Timelineinfo 04/07/2026 CVE reserved 04/08/2026 +1 days Advisory disclosed 04/08/2026 +0 days VulDB entry created 04/08/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-7cm9-v848-cfh2 Status: Confirmed CVE: CVE-2026-39391 (🔒) GCVE (CVE): GCVE-0-2026-39391 GCVE (VulDB): GCVE-100-356256 Entryinfo Created: 04/08/2026 17:23 Changes: 04/08/2026 17:23 (67) Complete: 🔍 Cache ID: 99:1E6:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸