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CVE-2021-3337

Quick assessment

Affected
n/a n/a
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.

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 Hide-Thread-Content plugin through 2021-01-27 存在安全漏洞，该漏洞源于远程攻击者通过点击回复或引用来绕过预期的内容阅读限制。

AI Predicted 7.5 Difficulty: Trivial EPSS 11.47% · P96

Public Exploits 1

ExploitDB · 1 EDB-49496 [webapps]

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-3337

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Hide-Thread-Content plugin through 2021-01-27 for MyBB allows remote attackers to bypass intended content-reading restrictions by clicking on reply or quote in the postbit.
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 Hide-Thread-Content plugin 安全漏洞
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 Hide-Thread-Content plugin through 2021-01-27 存在安全漏洞，该漏洞源于远程攻击者通过点击回复或引用来绕过预期的内容阅读限制。
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-2021-3337

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-3337

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Exploits & Public PoCs for CVE-2021-3337 (1)

Other References for CVE-2021-3337 (1)

Same Patch Batch · n/a · 2021-01-28 · 22 CVEs total

CVE-2021-20186 Moodle 跨站脚本漏洞
CVE-2020-8585 Netapp NetApp OnCommand Unified Manager 后置链接漏洞
CVE-2019-25016 Duncaen OpenDoas 安全漏洞
CVE-2021-3160 Aca Assurex Rentes 代码问题漏洞
CVE-2020-35754 Opensolution Quick.Cart和Opensolution Quick.Cms 注入漏洞
CVE-2020-36115 EGavilan Media CRUD Operation 跨站脚本漏洞
CVE-2020-35517 QEMU 访问控制错误漏洞
CVE-2020-1725 Red Hat Keycloak 访问控制错误漏洞
CVE-2021-20185 Moodle 资源管理错误漏洞
CVE-2021-25647 Testesdecodigogratis Testes de Codigo 跨站脚本漏洞
CVE-2021-20184 Moodle 信息泄露漏洞
CVE-2020-25782 Accfly Wireless Security IR Camera System 720P Software 缓冲区错误漏洞
CVE-2021-20183 Moodle 跨站脚本漏洞
CVE-2021-20187 Moodle 代码注入漏洞
CVE-2021-22875 Revive Adserver 跨站脚本漏洞
CVE-2021-22874 Revive Adserver 跨站脚本漏洞
CVE-2020-13569 OpenEMR 跨站请求伪造漏洞
CVE-2020-35124 Mautic 跨站脚本漏洞
CVE-2020-25785 Accfly Wireless Security IR Camera System 720P Software 缓冲区错误漏洞
CVE-2020-25784 Accfly Wireless Security IR Camera System 720P Software 缓冲区错误漏洞

Showing top 20 of 22 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-3337

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