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CVE-2021-24916— Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending

Quick assessment

Affected
Unknown Qubely
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和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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 plugin是一个应用插件。 WordPress plugin Qubely 1.8.6 版本之前存在安全漏洞，该漏洞源于允许未经身份验证的用户通过 qubely_send_form_data AJAX 操作向任意地址发送任意电子邮件。

AI Predicted 7.5 Difficulty: Trivial EPSS 1.73% · P77

Public Exploits 1

Nuclei · 1 CVE-2021-24916.yaml [template]

Possible ATT&CK Techniques 1 AI

T1534 · Internal Spearphishing
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I. Basic Information for CVE-2021-24916

Vulnerability Information
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Vulnerability Title
Qubely < 1.8.6 - Unauthenticated Arbitrary E-mail Sending
Source: CVE Program / CVE List V5
Vulnerability Description
The Qubely WordPress plugin before 1.8.6 allows unauthenticated user to send arbitrary e-mails to arbitrary addresses via the qubely_send_form_data AJAX action.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin Qubely 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用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 plugin是一个应用插件。 WordPress plugin Qubely 1.8.6 版本之前存在安全漏洞，该漏洞源于允许未经身份验证的用户通过 qubely_send_form_data AJAX 操作向任意地址发送任意电子邮件。
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
Unknown Qubely 0 ~ 1.8.6 -

II. Public POCs for CVE-2021-24916

# POC Description Source Link Shenlong Link
1 Qubely WordPress plugin < 1.8.6 contains an insecure deserialization caused by unauthenticated users being able to send arbitrary emails via the qubely_send_form_data AJAX action, letting attackers send spam or malicious emails, exploit requires no authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24916.yaml POC Details
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III. Intelligence Information for CVE-2021-24916

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Vendor Advisories for CVE-2021-24916 (1)

Same Patch Batch · Unknown · 2023-08-07 · 9 CVEs total

CVE-2023-3650 Bubble Menu < 3.0.5 - Admin+ Stored XSS
CVE-2023-3492 WP Shopping Pages <= 1.14 - Stored XSS via CSRF
CVE-2023-3575 Quiz And Survey Master < 8.1.11 - Contributor+ Stored XSS
CVE-2023-3365 MultiParcels Shipping For WooCommerce < 1.14.14 - Subscriber+ Arbitrary Shipment Deletion
CVE-2023-3671 MultiParcels Shipping For WooCommerce < 1.15.4 - Reflected XSS
CVE-2023-3524 WPCode < 2.0.13.1 - Reflected XSS
CVE-2023-0604 WP Food Manager < 1.0.4 - Admin+ Stored XSS
CVE-2023-2843 MultiParcels Shipping For WooCommerce < 1.14.15 - Subscribers+ SQLi

IV. Related Vulnerabilities

Same product: Qubely
Same vendor: Unknown

V. Comments for CVE-2021-24916

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