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CVE-2024-52794— Magnific lightbox susceptible to Cross-site Scripting in Discourse

Quick assessment

Affected
discourse discourse
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Discourse是Discourse开源的一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse存在跨站脚本漏洞，该漏洞源于用户点击lightbox缩略图时受到影响。

CVSS 6.8 · Medium EPSS 0.29% · P19
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I. Basic Information for CVE-2024-52794

Vulnerability Information
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Vulnerability Title
Magnific lightbox susceptible to Cross-site Scripting in Discourse
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is an open source platform for community discussion. Users clicking on the lightbox thumbnails could be affected. This problem is patched in the latest version of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:H/A:L
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
Discourse 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是Discourse开源的一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse存在跨站脚本漏洞，该漏洞源于用户点击lightbox缩略图时受到影响。
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
discourse discourse stable: <= 3.3.2 -

II. Public POCs for CVE-2024-52794

# POC Description Source Link Shenlong Link
1 Stored XSS in Discourse via image filename - CVE-2024-52794 https://github.com/Beesco00/CVE-2024-52794-Discourse-Stored-XSS POC Details
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III. Intelligence Information for CVE-2024-52794

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Vendor Advisories for CVE-2024-52794 (1)

Same Patch Batch · discourse · 2024-12-19 · 4 CVEs total

CVE-2024-53991 7.5 HIGH Potential Backup file leaked via Nginx in Discourse
CVE-2024-49765 5.3 MEDIUM Bypass of Discourse Connect using other login paths if enabled in Discourse
CVE-2024-52589 2.2 LOW Moderators can view Screened emails even when the “moderators view emails” option is disab

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-79

V. Comments for CVE-2024-52794

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