CVE-2026-34566 | ci4-cms-erp ci4ms 0.28.5.0 cross site scripting (GHSA-458r-h248-29c5)

VDB-354813 · CVE-2026-34566 · GHSA-458R-H248-29C5 CI4-CMS-ERP CI4MS 0.28.5.0 CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.2 $0-$5k 1.10+ Summaryinfo A vulnerability marked as problematic has been reported in ci4-cms-erp ci4ms. This affects an unknown function. Performing a manipulation results in cross site scripting. This vulnerability was named CVE-2026-34566. The attack may be initiated remotely. There is no available exploit. It is suggested to upgrade the affected component. Detailsinfo A vulnerability was found in ci4-cms-erp ci4ms. It has been classified as problematic. This affects an unknown code. The manipulation 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 version 0.31.0.0, the application fails to properly sanitize user-controlled input within the Page Management functionality when creating or editing pages. Multiple input fields accept attacker-controlled JavaScript payloads that are stored server-side. These stored values are later rendered without proper output encoding across administrative page lists and public-facing page views, leading to stored DOM-based cross-site scripting (XSS). This issue has been patched in version 0.31.0.0. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-34566 since 03/30/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue. Upgrading to version 0.31.0.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. 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: 6.3 VulDB Meta Temp Score: 6.2 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA Base Score: 9.1 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 03/30/2026 CVE reserved 04/02/2026 +3 days Advisory disclosed 04/02/2026 +0 days VulDB entry created 04/02/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-458r-h248-29c5 Status: Confirmed CVE: CVE-2026-34566 (🔒) GCVE (CVE): GCVE-0-2026-34566 GCVE (VulDB): GCVE-100-354813 Entryinfo Created: 04/02/2026 02:45 Changes: 04/02/2026 02:45 (66) Complete: 🔍 Cache ID: 99:D7E:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸