CVE-2026-47900

Stored XSS via Unsanitized Plugin Metadata in Logseq

Published Jun 9, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Logseq
Logseq logseq
Vendors & Products Logseq
Logseq logseq
Type Values Removed Values Added
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.
Title Stored XSS via Unsanitized Plugin Metadata in Logseq
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 4.6, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CERT-PL
Published
Updated
Jun 9, 2026, 2:39 PM
Reserved
May 20, 2026, 2:37 PM
Status
Deferred
Published
Jun 9, 2026, 2:16 PM
Modified
Jul 23, 2026, 8:10 AM