CVE-2026-39390 | ci4-cms-erp ci4ms 0.28.5.0/0.31.0.0/0.31.2.0 compInfosPost cMap cross site scripting

VDB-356253 · CVE-2026-39390 · GCVE-0-2026-39390 CI4-CMS-ERP CI4MS 0.28.5.0/0.31.0.0/0.31.2.0 COMPINFOSPOST CMAP CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.9 $0-$5k 0.87+ Summaryinfo A vulnerability identified as problematic has been detected in ci4-cms-erp ci4ms. The impacted element is the function compInfosPost. Performing a manipulation of the argument cMap results in cross site scripting. This vulnerability was named CVE-2026-39390. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component. Detailsinfo A vulnerability was found in ci4-cms-erp ci4ms. It has been classified as problematic. This affects the function compInfosPost. The manipulation of the argument cMap 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: 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 Google Maps iframe setting (cMap field) in compInfosPost() sanitizes input using strip_tags() with an allowlist and regex-based removal of on\w+ event handlers. However, the srcdoc attribute is not an event handler and passes all filters. An attacker with admin settings access can inject an payload with HTML-entity-encoded JavaScript that executes in the context of the parent page when rendered to unauthenticated frontend visitors. This vulnerability is fixed in 0.31.4.0. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-39390 since 04/07/2026. 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 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: 3.9 VulDB Meta Temp Score: 3.9 VulDB Base Score: 2.4 VulDB Temp Score: 2.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 5.5 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: github.com Status: Confirmed CVE: CVE-2026-39390 (🔒) GCVE (CVE): GCVE-0-2026-39390 GCVE (VulDB): GCVE-100-356253 Entryinfo Created: 04/08/2026 17:21 Changes: 04/08/2026 17:21 (66) Complete: 🔍 Cache ID: 99:603:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸