PT-2026-47799 · Logseq · Logseq

Bartłomiej Dmitruk · Published 2026-06-09 · Updated 2026-06-09 · CVE-2026-47900

NVD

CVSS v4.0

4.6

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-47900

Affected Products

Logseq

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-47900 · Security Note
• https://cert.pl/en/posts/2026/06/CVE-2026-9279 · Note
• https://logseq.com · Note