CVE-2026-27599 | ci4-cms-erp ci4ms 0.28.5.0 Mail Protocol cross site scripting (GHSA-66m2-v9v9-95c3)

VDB-354286 · CVE-2026-27599 · GHSA-66M2-V9V9-95C3 CI4-CMS-ERP CI4MS 0.28.5.0 MAIL PROTOCOL CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 3.5 $0-$5k 1.58+ Summaryinfo A vulnerability, which was classified as problematic, was found in ci4-cms-erp ci4ms. This impacts an unknown function of the component Mail Protocol. Executing a manipulation can lead to cross site scripting. This vulnerability is handled as CVE-2026-27599. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component. Detailsinfo A vulnerability classified as problematic was found in ci4-cms-erp ci4ms. This vulnerability affects some unknown functionality of the component Mail Protocol. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect 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 version 0.31.0.0, the application fails to properly sanitize user-controlled input within System Settings – Mail Settings. Several configuration fields, including Mail Server, Mail Port, Email Address, Email Password, Mail Protocol, and TLS settings, accept attacker-controlled input that is stored server-side and later rendered without proper output encoding. This issue has been patched in version 0.31.0.0. The advisory is available at github.com. This vulnerability was named CVE-2026-27599 since 02/20/2026. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. Upgrading to version 0.31.0.0 eliminates this vulnerability. Productinfo Type Content Management System Vendor ci4-cms-erp Name ci4ms Version 0.28.5.0 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: 3.5 VulDB Meta Temp Score: 3.5 VulDB Base Score: 2.4 VulDB Temp Score: 2.3 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 4.7 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 0.31.0.0 Timelineinfo 02/20/2026 CVE reserved 03/30/2026 +38 days VulDB entry created 03/31/2026 +0 days Advisory disclosed 03/31/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-66m2-v9v9-95c3 Status: Confirmed CVE: CVE-2026-27599 (🔒) GCVE (CVE): GCVE-0-2026-27599 GCVE (VulDB): GCVE-100-354286 Entryinfo Created: 03/31/2026 00:23 Changes: 03/31/2026 00:23 (66) Complete: 🔍 Cache ID: 99:DDD:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸