CVE-2026-116897— REDAXO before 5.21.4 Missing Authorization in Version and History Previews

Quick assessment

Affected

redaxo core

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 5.21.4 版本之前的 REDAXO 核心中，存在一个授权缺失漏洞，影响其结构/版本（structure/version）和结构/历史（structure/history）的前端预览模式。这些模式在预览文章时未检查用户是否拥有相应类别（category）或语言（clang）的权限。任何后台用户，或拥有权限的用户，均可通过设置任意文章 ID 的或参数，读取未发布的草稿版本以及历史或已删除的内容。

CVSS 6.5 · Medium Updated Oct 27, 2026

Possible ATT&CK Techniques 2 AI

T1086 T1068 · Exploitation for Privilege Escalation

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Vulnerability Information

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Vulnerability Title

REDAXO before 5.21.4 Missing Authorization in Version and History Previews

Source: CVE Program / CVE List V5

Vulnerability Description

REDAXO core before 5.21.4 contains a missing authorization vulnerability in the structure/version and structure/history frontend preview modes, which do not check category or clang permissions for the previewed article. Any backend user, or one holding history[article_rollback], can set rex_version or rex_history_date with arbitrary article_id values to read unpublished working versions and historic or deleted content.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

授权机制缺失

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
redaxo	core	0 ~ 5.21.4	-

II. Public POCs for CVE-2026-116897

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-116897

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Other References for CVE-2026-116897 (2)

https://github.com/redaxo/core/security/advisories/GHSA-v4m9-jvvr-83cx vendor-advisory
https://www.vulncheck.com/advisories/redaxo-before-5.21.4-missing-authorization-in-version-and-history-previews third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-116897

Same Patch Batch · redaxo · 2026-10-27 · 15 CVEs total

CVE-2026-117532	9.8 CRITICAL	REDAXO Core 5.3.0 before 5.21.4 Authentication Bypass via History Plugin
CVE-2026-117536	8.8 HIGH	REDAXO before 5.21.3 CSRF Token Bypass via users/users Privilege Escalation
CVE-2026-116896	7.5 HIGH	REDAXO before 5.21.5 Privilege Escalation via Backup Export of Authentication Tables
CVE-2026-116898	7.1 HIGH	REDAXO before 5.21.4 Missing Authorization in Media Pool Bulk Move
CVE-2026-116893	6.8 MEDIUM	REDAXO core before 5.21.5 Missing Authorization in rex_api_package API
CVE-2026-116899	6.5 MEDIUM	REDAXO before 5.21.4 Broken Access Control in Slice Operations
CVE-2026-117535	6.1 MEDIUM	REDAXO before 5.21.3 Reflected XSS via opener_link in Media Pool
CVE-2026-117534	5.4 MEDIUM	REDAXO before 5.21.3 CSRF in Article History Plugin
CVE-2026-116900	5.4 MEDIUM	REDAXO before 5.21.4 Stored XSS via Media and Link Input Widgets
CVE-2026-116895	5.4 MEDIUM	REDAXO before 5.21.5 CSRF via Safe Mode Toggle Parameter
CVE-2026-117533	4.4 MEDIUM	REDAXO 5.18.0 before 5.21.4 Stored XSS via Unsanitized Mediapool SVG Uploads
CVE-2026-116894	4.2 MEDIUM	REDAXO before 5.21.5 Insufficient Session Expiration on Password Change
CVE-2026-117538	4.1 MEDIUM	REDAXO before 5.21.0 Reflected XSS via Packages API function Parameter
CVE-2026-117537	4.1 MEDIUM	REDAXO before 5.21.0 Reflected XSS via Metainfo API type Parameter

IV. Related Vulnerabilities

Same product: core

Same vendor: redaxo

Same weakness: CWE-862