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CVE-2021-47934— MyBB Timeline Plugin 1.0 Cross-Site Scripting and CSRF

Quick assessment

Affected
MyBB MyBB Timeline Plugin
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 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。

CVSS 5.3 · Medium EPSS 0.23% · P13

Affected Version Matrix 1

VendorProduct Version RangeStatus
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: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
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

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III. Intelligence Information for CVE-2021-47934

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Vendor Advisories for CVE-2021-47934 (1)

Exploits & Public PoCs for CVE-2021-47934 (1)

Other References for CVE-2021-47934 (1)

IV. Related Vulnerabilities

Same vendor: MyBB
Same weakness: CWE-79

V. Comments for CVE-2021-47934

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