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CVE-2026-47901— Iframe escape by plugins in Logseq

Quick assessment

Affected
logseq logseq
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.

Logseq是Logseq开源的一个知识管理和协作平台。。 Logseq v0.10.15版本存在跨站脚本漏洞，该漏洞源于沙盒iframe中运行的插件可将任意HTML属性（如事件处理程序）注入到主机DOM中的容器元素，由于内容安全策略被禁用，导致恶意插件可在特权主机环境中执行任意JavaScript，可能获得对文件系统API的未授权访问。

AI Predicted 8.1 Difficulty: Easy EPSS 0.14% · P3

Affected Version Matrix 1

VendorProduct Version RangeStatus
logseq logseq ≤ 0.10.15 affected
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I. Basic Information for CVE-2026-47901

Vulnerability Information
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Vulnerability Title
Iframe escape by plugins in Logseq
Source: CVE Program / CVE List V5
Vulnerability Description
Logseq is vulnerable to a sandbox escape flaw where plugins running in sandboxed iframes can inject arbitrary HTML attributes, such as event handlers, into their container element in the host DOM. Due to a disabled Content Security Policy (CSP), this allows a malicious plugin to execute arbitrary JavaScript in the privileged host context, potentially gaining unauthorized access to filesystem APIs. While only version v0.10.15 was tested and confirmed as vulnerable, status of other versions is unknown since this issue was not addressed by a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/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
Logseq 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Logseq是Logseq开源的一个知识管理和协作平台。。 Logseq v0.10.15版本存在跨站脚本漏洞，该漏洞源于沙盒iframe中运行的插件可将任意HTML属性（如事件处理程序）注入到主机DOM中的容器元素，由于内容安全策略被禁用，导致恶意插件可在特权主机环境中执行任意JavaScript，可能获得对文件系统API的未授权访问。
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
logseq logseq 0 ~ 0.10.15 -

II. Public POCs for CVE-2026-47901

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III. Intelligence Information for CVE-2026-47901

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Security Blog Posts for CVE-2026-47901 (1)

Same Patch Batch · logseq · 2026-06-09 · 4 CVEs total

CVE-2026-47899 Arbitrary File Read, Write, Rename, and Delete in Logseq
CVE-2026-47900 Stored XSS via Unsanitized Plugin Metadata in Logseq
CVE-2026-9279 Shell command injection in Logseq

IV. Related Vulnerabilities

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