CyberRota Analysis
AI-GeneratedConcrete CMS versions prior to 9.5.3 are vulnerable to stored cross-site scripting due to improper sanitization of custom style values in the Block Design dialog, allowing an editor-level user to inject malicious scripts that can execute in an administrator's session. This vulnerability poses a significant risk of privilege escalation, making it critical for organizations using affected versions to prioritize immediate updates. Administrators and security teams should address this issue promptly to mitigate potential exploitation.
Original NVD Description
Concrete CMS below 9.5.3 did not sanitize custom style values in the Block Design dialog before writing them into page CSS via a DOM sink, permitting stored cross-site scripting. An editor-level user could execute script in an administrator's session and escalate privileges. The Concrete CMS security team gave this vulnerability a CVSS v4.0 score of 7.0 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks Nguyen Manh Thuan for reporting.