CVE-2023-53977— myBB Forums 1.8.26 Stored Cross-Site Scripting via Forum Management
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I. Basic Information for CVE-2023-53977
Vulnerability Information
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Vulnerability Title
myBB Forums 1.8.26 Stored Cross-Site Scripting via Forum Management
Source: NVD (National Vulnerability Database)
Vulnerability Description
myBB Forums 1.8.26 contains a stored cross-site scripting vulnerability in the forum management system that allows authenticated administrators to inject malicious scripts when creating new forums. Attackers can exploit this vulnerability by inserting script payloads in the forum title field when adding new forums through the 'Forums and Posts' > 'Forum Management' interface, causing arbitrary JavaScript to execute when the forum listing is viewed.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
Vulnerability Title
MyBB 跨站脚本漏洞
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 1.8.26版本存在跨站脚本漏洞，该漏洞源于论坛管理系统存在存储型跨站脚本问题，可能导致经过身份验证的管理员在创建新论坛时注入恶意脚本。
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 | myBB forums | 1.8.26 | - |
II. Public POCs for CVE-2023-53977
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Same Patch Batch · Mybb · 2025-12-22 · 4 CVEs total
| CVE-2023-53979 | 8.8 HIGH | MyBB 1.8.32 Authenticated Remote Code Execution via Chained Vulnerabilities |
| CVE-2023-53976 | 5.4 MEDIUM | myBB Forums 1.8.26 Stored Cross-Site Scripting via Template Management |
| CVE-2023-53978 | 5.4 MEDIUM | myBB Forums 1.8.26 Stored Cross-Site Scripting via Forum Announcements |
IV. Related Vulnerabilities
Same vendor: Mybb
- CVE-2018-25309
MyBB Recent threads 17.0 Persistent Cross-Site Scripting - CVE-2018-25250
MyBB Last User's Threads in Profile Plugin 1.2 Persistent XS - CVE-2018-25249
MyBB My Arcade Plugin 1.3 Persistent XSS via Comment - CVE-2018-25248
MyBB Downloads Plugin 2.0.3 Persistent XSS via downloads.php - CVE-2018-25247
MyBB Like Plugin 3.0.0 Cross-Site Scripting via User Profile
Same weakness: CWE-79
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V. Comments for CVE-2023-53977
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