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CVE-2011-10018— myBB 1.6.4 Backdoor Arbitrary Command Execution

Quick assessment

Affected
myBB Group Forum Software
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团队的一套用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 1.6.4版本存在安全漏洞，该漏洞源于源代码中嵌入后门，可能导致远程代码执行。

AI Predicted 10.0 Difficulty: Trivial EPSS 1.98% · P79

Public Exploits 1

Metasploit · 1 mybb_backdoor.rb [exploit]
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I. Basic Information for CVE-2011-10018

Vulnerability Information
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Vulnerability Title
myBB 1.6.4 Backdoor Arbitrary Command Execution
Source: CVE Program / CVE List V5
Vulnerability Description
myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed remote attackers to execute arbitrary PHP code by injecting payloads into a specially crafted collapsed cookie. This vulnerability was introduced during packaging and was not part of the intended application logic. Exploitation requires no authentication and results in full compromise of the web server under the context of the web application.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
隐藏功能
Source: CVE Program / CVE List V5
Vulnerability Title
MyBB 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MyBB（MyBulletinBoard）是MyBB团队的一套用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 1.6.4版本存在安全漏洞，该漏洞源于源代码中嵌入后门，可能导致远程代码执行。
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
myBB Group Forum Software 1.6.4 -

II. Public POCs for CVE-2011-10018

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III. Intelligence Information for CVE-2011-10018

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IV. Related Vulnerabilities

Same weakness: CWE-912

V. Comments for CVE-2011-10018

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