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CVE-2021-43281

Quick assessment

Affected
n/a n/a
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.

MyBB（MyBulletinBoard）是MyBB（MYBB）团队的开发的一套用PHP和MySQL开发的免费且基于Web的论坛软件。该软件具有简单易用、支持多国语言、可扩展等特点。 MyBB 1.8.29之前版本存在代码注入漏洞，攻击者可以通过"Can manage settings?"进行远程代码注入。

AI Predicted 6.5 Difficulty: Easy EPSS 1.33% · P70

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-43281

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
MyBB before 1.8.29 allows Remote Code Injection by an admin with the "Can manage settings?" permission. The Admin CP's Settings management module does not validate setting types correctly on insertion and update, making it possible to add settings of supported type "php" with PHP code, executed on Change Settings pages.
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
MyBB 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MyBB（MyBulletinBoard）是MyBB（MYBB）团队的开发的一套用PHP和MySQL开发的免费且基于Web的论坛软件。该软件具有简单易用、支持多国语言、可扩展等特点。 MyBB 1.8.29之前版本存在代码注入漏洞，攻击者可以通过"Can manage settings?"进行远程代码注入。
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
- n/a n/a -

II. Public POCs for CVE-2021-43281

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-43281

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Vendor Advisories for CVE-2021-43281 (1)

Same Patch Batch · n/a · 2021-11-04 · 12 CVEs total

CVE-2021-43400 BlueZ 资源管理错误漏洞
CVE-2020-25367 D-Link DIR-823G 命令注入漏洞
CVE-2020-25366 D-Link DIR-823G 安全漏洞
CVE-2020-25368 D-Link DIR-823G 命令注入漏洞
CVE-2021-42624 Miniftpd 安全漏洞
CVE-2021-43293 Sonatype Nexus Repository 代码问题漏洞
CVE-2021-43389 Linux kernel 缓冲区错误漏洞
CVE-2020-21139 EC Cloud E-Commerce System 跨站请求伪造漏洞
CVE-2021-43396 GNU C Library 安全漏洞
CVE-2021-43398 Crypto++ 安全漏洞
CVE-2021-42057 obsidian-dataview 代码注入漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-43281

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