TI-2026-35347 Aliases CVE-2026-47899 GHSA-jq3m-h4m5-r9j5

Arbitrary File Read, Write, Rename, and Delete in Logseq

LOW 39CWE-749Published 2026-06-09 · Updated 2026-06-09

Key facts

Attack vector: Local
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: —
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

The Electron preload script in Logseq exposes an API method that allows the renderer process to invoke IPC handlers without proper path validation. An attacker with JavaScript execution in the renderer (e.g. via XSS or a malicious plugin), can read, write, or delete arbitrary files on the user's system. 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00137 3rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
logseq	logseq	up to 0.10.15	—	No fix listed	CNA

logseq Vendorlogseq Affected up to 0.10.15 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-47899
2026-10-03 Alias added: GHSA-jq3m-h4m5-r9j5

References

Advisory 1

https://cert.pl/en/posts/2026/06/CVE-2026-9279/

Other 1

https://logseq.com/

TI-2026-08151 Shell command injection in Logseq CVSS 4.0HIGH 8.7
TI-2026-35349 Iframe escape by plugins in Logseq CVSS 4.0MEDIUM 4.6
TI-2026-35348 Stored XSS via Unsanitized Plugin Metadata in Logseq CVSS 4.0MEDIUM 4.6

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences