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CVE-2021-24579— Bold Page Builder < 3.1.6 - PHP Object Injection

Quick assessment

Affected
Unknown Bold Page Builder
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 插件是WordPress开源的一个应用插件。 WordPress 插件 Bold Page Builder 3.1.6之前版本存在代码问题漏洞，该漏洞源于插件的bt_bb_get_grid AJAX 操作将用户输入传入unserialize()函数，没有进行任何的验证或转义，这可能导致PHP对象注入，并在某些情况下可能导致远程代码注入。

AI Predicted 8.1 Difficulty: Moderate EPSS 8.21% · P95
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I. Basic Information for CVE-2021-24579

Vulnerability Information
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Vulnerability Title
Bold Page Builder < 3.1.6 - PHP Object Injection
Source: CVE Program / CVE List V5
Vulnerability Description
The bt_bb_get_grid AJAX action of the Bold Page Builder WordPress plugin before 3.1.6 passes user input into the unserialize() function without any validation or sanitisation, which could lead to a PHP Object Injection. Even though the plugin did not contain a suitable gadget to fully exploit the issue, other installed plugins on the blog could allow such issue to be exploited and lead to RCE in some cases.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress 插件代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress 插件是WordPress开源的一个应用插件。 WordPress 插件 Bold Page Builder 3.1.6之前版本存在代码问题漏洞，该漏洞源于插件的bt_bb_get_grid AJAX 操作将用户输入传入unserialize()函数，没有进行任何的验证或转义，这可能导致PHP对象注入，并在某些情况下可能导致远程代码注入。
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 Bold Page Builder 3.1.6 ~ 3.1.6 -

II. Public POCs for CVE-2021-24579

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III. Intelligence Information for CVE-2021-24579

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Same Patch Batch · Unknown · 2021-08-30 · 10 CVEs total

CVE-2021-24437 Favicon by RealFaviconGenerator <= 1.3.20 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24438 ShareThis Dashboard for Google Analytics < 2.5.2 - Reflected Cross-Site Scripting (XSS)
CVE-2021-24528 FluentSMTP < 2.0.1 - Authenticated Stored XSS
CVE-2021-24580 Side Menu Lite < 2.2.6 - Authenticated SQL Injection
CVE-2021-24581 Blue Admin <= 21.06.01 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24592 Sitewide Notice WP < 2.3 - Authenticated Stored XSS
CVE-2021-24593 Business Hours Indicator < 2.3.5 - Authenticated Stored XSS
CVE-2021-24665 WP Video Lightbox < 1.9.3 - Contributor+ Stored Cross-Site Scripting
CVE-2021-24667 Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting

IV. Related Vulnerabilities

Same product: Bold Page Builder
Same vendor: Unknown
Same weakness: CWE-502

V. Comments for CVE-2021-24579

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