CVE-2026-47900CWE-79

Stored XSS via Unsanitized Plugin Metadata in Logseq

Medium · published June 9, 2026

CVSS v4.0
4.6
EPSS
0%
Percentile
9.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
4.6 · MEDIUM
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
EPSS
0.00199 · 9.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-06-09T13:23Z
EPSS history
Timeline
  • 09 JUN 13:23Z
    Stored XSS via Unsanitized Plugin Metadata in Logseq
    cvelistv5