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CVE-2026-41653— BentoPDF: Stored XSS via Markdown Editor Leading to Persistent File Exfiltration

Quick assessment

Affected
alam00000 bentopdf
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.

BentoPDF是Alam个人开发者的一款隐私优先的客户端PDF处理工具。 BentoPDF 2.8.3之前版本存在跨站脚本漏洞，该漏洞源于跨站脚本，可能导致攻击者在Markdown to PDF工具中执行任意JavaScript。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 1

VendorProduct Version RangeStatus
alam00000 bentopdf < 2.8.3 affected
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I. Basic Information for CVE-2026-41653

Vulnerability Information
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Vulnerability Title
BentoPDF: Stored XSS via Markdown Editor Leading to Persistent File Exfiltration
Source: CVE Program / CVE List V5
Vulnerability Description
BentoPDF is a client-side PDF toolkit that is self hostable. Prior to version 2.8.3, a cross-site scripting vulnerability was identified in BentoPD. An attacker may be able to execute arbitrary JavaScript in certain circumstances in Markdown to PDF Tool. This issue has been patched in version 2.8.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA: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
BentoPDF 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BentoPDF是Alam个人开发者的一款隐私优先的客户端PDF处理工具。 BentoPDF 2.8.3之前版本存在跨站脚本漏洞，该漏洞源于跨站脚本，可能导致攻击者在Markdown to PDF工具中执行任意JavaScript。
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
alam00000 bentopdf < 2.8.3 -

II. Public POCs for CVE-2026-41653

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III. Intelligence Information for CVE-2026-41653

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Vendor Advisories for CVE-2026-41653 (1)

Vendor Pages for CVE-2026-41653 (1)

IV. Related Vulnerabilities

Same product: bentopdf
Same vendor: alam00000
Same weakness: CWE-79

V. Comments for CVE-2026-41653

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