CVE-2026-47900 MEDIUM

CVE-2026-47900: Stored XSS via Unsanitized Plugin Metadata in Logseq

Vendor Logseq
Product logseq
Weakness CWE-79 · XSS
Published June 9, 2026
Last update June 9, 2026

CVSS base score

4.6/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction
Confidentiality
Integrity

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 9, 2026 CVE published
June 9, 2026 Record updated

Related vulnerabilities

04Related CVE