CVE-2021-39203— Private data disclosure/privilege escalation through the block editor in Wordpress
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I. Basic Information for CVE-2021-39203
Vulnerability Information
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Vulnerability Title
Private data disclosure/privilege escalation through the block editor in Wordpress
Source: NVD (National Vulnerability Database)
Vulnerability Description
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. In affected versions authenticated users who don't have permission to view private post types/data can bypass restrictions in the block editor under certain conditions. This affected WordPress 5.8 beta during the testing period. It's fixed in the final 5.8 release.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是WordPress（Wordpress）基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。 WordPress 5.8 beta 版存在信息泄露漏洞，攻击者可利用该漏洞绕过编辑器中的限制，查看私有数据。这个问题在5.8正式版本中得到了修复。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| WordPress | wordpress-develop | 5.8 beta 1 | - |
II. Public POCs for CVE-2021-39203
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://hackerone.com/reports/1225282x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-39203
Same Patch Batch · WordPress · 2021-09-09 · 4 CVEs total
| CVE-2021-39201 | 7.6 HIGH | Authenticated cross-site scripting (XSS) in WordPress editor |
| CVE-2021-39202 | 7.6 HIGH | WordPress 5.8 beta: Stored Cross-Site Scripting (XSS) vulnerability in widget |
| CVE-2021-39200 | 5.3 MEDIUM | Information Disclosure in wp_die() via JSONP in wordpress |
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