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CVE-2021-42359— WP DSGVO Tools (GDPR) <= 3.1.23 Unauthenticated Arbitrary Post Deletion

Quick assessment

Affected
legalweb WP DSGVO Tools (GDPR)
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 DSGVO Tools 3.1.23及之前版本存在访问控制错误漏洞，该漏洞源于应用缺少能力检查和随机数检查，可供未经身份验证的用户使用，并且在删除取消订阅时不检查帖子类型要求。

CVSS 7.5 · High EPSS 3.84% · P90

Public Exploits 1

Nuclei · 1 CVE-2021-42359.yaml [template]
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I. Basic Information for CVE-2021-42359

Vulnerability Information
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Vulnerability Title
WP DSGVO Tools (GDPR) <= 3.1.23 Unauthenticated Arbitrary Post Deletion
Source: CVE Program / CVE List V5
Vulnerability Description
WP DSGVO Tools (GDPR) <= 3.1.23 had an AJAX action, ‘admin-dismiss-unsubscribe‘, which lacked a capability check and a nonce check and was available to unauthenticated users, and did not check the post type when deleting unsubscription requests. As such, it was possible for an attacker to permanently delete an arbitrary post or page on the site by sending an AJAX request with the “action” parameter set to “admin-dismiss-unsubscribe” and the “id” parameter set to the post to be deleted. Sending such a request would move the post to the trash, and repeating the request would permanently delete the post in question.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 访问控制错误漏洞
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 DSGVO Tools 3.1.23及之前版本存在访问控制错误漏洞，该漏洞源于应用缺少能力检查和随机数检查，可供未经身份验证的用户使用，并且在删除取消订阅时不检查帖子类型要求。
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
legalweb WP DSGVO Tools (GDPR) 3.1.23 ~ 3.1.23 -

II. Public POCs for CVE-2021-42359

# POC Description Source Link Shenlong Link
1 WP DSGVO Tools (GDPR) <= 3.1.23 had an AJAX action, ‘admin-dismiss-unsubscribe‘, which lacked a capability check and a nonce check and was available to unauthenticated users, and did not check the post type when deleting unsubscription requests. As such, it was possible for an attacker to permanently delete an arbitrary post or page on the site by sending an AJAX request with the “action” parameter set to “admin-dismiss-unsubscribe” and the “id” parameter set to the post to be deleted. Sending such a request would move the post to the trash, and repeating the request would permanently delete the post in question. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-42359.yaml POC Details
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III. Intelligence Information for CVE-2021-42359

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Vendor Advisories for CVE-2021-42359 (1)

IV. Related Vulnerabilities

Same product: WP DSGVO Tools (GDPR)
Same vendor: legalweb
Same weakness: CWE-284

V. Comments for CVE-2021-42359

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