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CVE-2024-52300— macro-pdfviewer has a XSS through the width parameter

Quick assessment

Affected
xwikisas macro-pdfviewer
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.

PDF Viewer Macro是XWiki SAS开源的一个宏。允许在 XWiki 页面内查看附加到 XWiki 页面的 PDF 文件。 PDF Viewer Macro 2.5.6版本之前存在安全漏洞，该漏洞源于PDF查看器宏的width参数未正确转义，允许任何可以编辑页面的用户进行跨站脚本攻击。

CVSS 9.1 · Critical EPSS 0.43% · P35
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I. Basic Information for CVE-2024-52300

Vulnerability Information
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Vulnerability Title
macro-pdfviewer has a XSS through the width parameter
Source: CVE Program / CVE List V5
Vulnerability Description
macro-pdfviewer is a PDF Viewer Macro for XWiki using Mozilla pdf.js. The width parameter of the PDF viewer macro isn't properly escaped, allowing XSS for any user who can edit a page. XSS can impact the confidentiality, integrity and availability of the whole XWiki installation when an admin visits the page with the malicious code. This is fixed in 2.5.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
PDF Viewer Macro 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PDF Viewer Macro是XWiki SAS开源的一个宏。允许在 XWiki 页面内查看附加到 XWiki 页面的 PDF 文件。 PDF Viewer Macro 2.5.6版本之前存在安全漏洞，该漏洞源于PDF查看器宏的width参数未正确转义，允许任何可以编辑页面的用户进行跨站脚本攻击。
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)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
xwikisas macro-pdfviewer < 2.5.6 -

II. Public POCs for CVE-2024-52300

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 11501 chars
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III. Intelligence Information for CVE-2024-52300

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Same Patch Batch · xwikisas · 2024-11-13 · 3 CVEs total

CVE-2024-52298 7.5 HIGH macro-pdfviewer's preview in WYSIWYG editor allows accessing any PDF document as the last
CVE-2024-52299 7.5 HIGH The PDF viewer macro allows accessing any attachment without access right checks

IV. Related Vulnerabilities

Same product: macro-pdfviewer
Same vendor: xwikisas
Same weakness: CWE-80

V. Comments for CVE-2024-52300

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