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CVE-2026-47900— Stored XSS via Unsanitized Plugin Metadata 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，该漏洞源于恶意插件可在其package.json文件的name字段中包含JavaScript有效载荷，并使用innerHTML进行渲染且未进行适当清理，导致在特权主机环境中执行任意代码。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
logseq logseq ≤ 0.10.15 affected
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I. Basic Information for CVE-2026-47900

Vulnerability Information
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Vulnerability Title
Stored XSS via Unsanitized Plugin Metadata in Logseq
Source: CVE Program / CVE List V5
Vulnerability Description
Logseq is vulnerable to a stored cross-site scripting (XSS). A malicious plugin can include a JavaScript payload in the "name" field of its "package.json" file, which is rendered using "innerHTML" without proper sanitization, allowing the execution of arbitrary code in the privileged host context. 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，该漏洞源于恶意插件可在其package.json文件的name字段中包含JavaScript有效载荷，并使用innerHTML进行渲染且未进行适当清理，导致在特权主机环境中执行任意代码。
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-2026-47900

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III. Intelligence Information for CVE-2026-47900

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Security Blog Posts for CVE-2026-47900 (1)

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

CVE-2026-47901 Iframe escape by plugins in Logseq
CVE-2026-47899 Arbitrary File Read, Write, Rename, and Delete in Logseq
CVE-2026-9279 Shell command injection in Logseq

IV. Related Vulnerabilities

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