CVE-2021-47934— MyBB Timeline Plugin 1.0 Cross-Site Scripting and CSRF
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| MyBB | MyBB Timeline Plugin | 1.0 | affected |
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I. Basic Information for CVE-2021-47934
Vulnerability Information
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Vulnerability Title
MyBB Timeline Plugin 1.0 Cross-Site Scripting and CSRF
Source: NVD (National Vulnerability Database)
Vulnerability Description
MyBB Timeline Plugin 1.0 contains cross-site scripting vulnerabilities that allow attackers to inject malicious scripts through thread titles, post content, and user profile fields like Location and Bio. Attackers can also exploit a cross-site request forgery vulnerability in the timeline.php profile action to change a user's cover picture by crafting malicious forms that execute when victims visit affected profiles.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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 Timeline Plugin 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MyBB Timeline Plugin是MyBB公司的一个为MyBB论坛提供时间线动态展示与社交活动流功能的插件。 MyBB Timeline Plugin 1.0版本存在跨站脚本漏洞，该漏洞源于跨站脚本问题，可能导致攻击者通过线程标题、帖子内容和用户个人资料字段注入恶意脚本，以及通过跨站请求伪造漏洞更改用户封面图片。
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 Timeline Plugin | 1.0 | - |
II. Public POCs for CVE-2021-47934
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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Vendor Advisories for CVE-2021-47934 (1)
- MyBB Timeline Plugin 1.0 Cross-Site Scripting and CSRF | Advisories | VulnCheckthird-party-advisory
Exploits & Public PoCs for CVE-2021-47934 (1)
Other References for CVE-2021-47934 (1)
- Extend MyBB - MyBB Timelineproduct
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
- CVE-2018-25349
userSpice 4.3.24 Cross-Site Scripting via X-Forwarded-For He - CVE-2026-41147
NukeViet CMS: Stored Cross-Site Scripting (XSS) via insuffic - CVE-2026-40607
MantisBT is Vulnerable to Stored XSS Through its Saved-Filte - CVE-2026-40598
MantisBT has Potential Referer-Based Reflected HTML Injectio - CVE-2026-40597
MantisBT has a Content Security Policy bypass via attachment
V. Comments for CVE-2021-47934
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