CVE-2026-24906

描述

A stored cross-site scripting (XSS) vulnerability was identified in the Backend Editor Settings. The Markup Classes fields (used for paragraph styles, inline styles, table styles, etc.) did not sanitize input to valid CSS class name characters. Malicious values were rendered unsanitized in Froala editor dropdown menus, allowing JavaScript execution when any user opened a RichEditor. ### Impact - Stored XSS via editor settings rendered in RichEditor dropdowns - Could allow privilege escalation if a superuser opens any RichEditor (e.g., editing a blog post) - Requires authenticated backend access with editor settings permissions - Triggers on routine content editing operations ### Patches The vulnerability has been patched in v3.7.14 and v4.1.10. All users are encouraged to upgrade to the latest patched version. ### Workarounds If upgrading immediately is not possible: - Restrict editor settings permissions to fully trusted administrators only ### References - Reported by [Chris Alupului](https://github.com/neosprings)

如何修補 CVE-2026-24906

要修補 CVE-2026-24906,請將受影響套件升級到下列已修補版本。

• —升級至 4.1.10 或更新版本

CVE-2026-24906 正在被利用嗎?

低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。

受影響套件(1)

• >= 4.0.0, < 4.1.10

CVSS 分數

參考連結(3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-24906
• PATCHgithub.com/octobercms/october
• WEBgithub.com/octobercms/october/security/advisories/GHSA-6qmh-j78v-ffp7