CVE-2026-4431— Easy Post Submission 2.3.0 缺失授权漏洞
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一、 漏洞 CVE-2026-4431 基础信息
漏洞信息
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Vulnerability Title
Easy Post Submission <= 2.3.0 - Missing Authorization
来源: CVE Program / CVE List V5
Vulnerability Description
The Easy Post Submission plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `create_post()` function in all versions up to, and including, 2.3.0. This is due to the `rbsm_submit_post` AJAX action being registered for unauthenticated users via `wp_ajax_nopriv_rbsm_submit_post` without any authorization checks when a `postId` parameter is supplied. This makes it possible for unauthenticated attackers to modify the title, content, excerpt, categories, and tags of arbitrary posts, as well as change the post status to draft (effectively unpublishing them) via the 'postId' parameter.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| themeruby | Easy Post Submission – Frontend Posting, Guest Publishing & Submit Content for WordPress | 0 ~ 2.3.0 | - |
二、漏洞 CVE-2026-4431 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-4431 补丁与修复 (3)
CVE-2026-4431 其他参考 (1)
IV. Related Vulnerabilities
V. Comments for CVE-2026-4431
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