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CVE-2021-24322— Database Backup for WordPress < 2.4 - Authenticated Persistent Cross-Site Scripting (XSS)

Quick assessment

Affected
Delicious Brains Database Backup for WordPress
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.

WordPress是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 插件是WordPress开源的一个应用插件。 Database Backup for WordPress plugin 2.4之前版本存在跨站脚本漏洞，该漏洞源于插件没有转义备份接收方的POST参数，然后将其输出回HTML标签的属性中，导致存储跨站点脚本问题。

AI Predicted 6.1 Difficulty: Easy EPSS 0.70% · P51
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I. Basic Information for CVE-2021-24322

Vulnerability Information
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Vulnerability Title
Database Backup for WordPress < 2.4 - Authenticated Persistent Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The Database Backup for WordPress plugin before 2.4 did not escape the backup_recipient POST parameter in before output it back in the attribute of an HTML tag, leading to a Stored Cross-Site Scripting issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 插件跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是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 插件是WordPress开源的一个应用插件。 Database Backup for WordPress plugin 2.4之前版本存在跨站脚本漏洞，该漏洞源于插件没有转义备份接收方的POST参数，然后将其输出回HTML标签的属性中，导致存储跨站点脚本问题。
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
Delicious Brains Database Backup for WordPress 2.4 ~ 2.4 -

II. Public POCs for CVE-2021-24322

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III. Intelligence Information for CVE-2021-24322

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Vendor Advisories for CVE-2021-24322 (1)

Other References for CVE-2021-24322 (1)

IV. Related Vulnerabilities

Same product: Database Backup for WordPress
Same vendor: Delicious Brains
Same weakness: CWE-79

V. Comments for CVE-2021-24322

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