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TI-2026-68384 Aliases CVE-2026-105783

Joplin Web Clipper pairing lets sites steal a permanent API token

Priority LOW 36CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Security bypass, Tampering
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-346 and CWE-352.

Summary

Joplin Desktop before 3.7.13 with the opt-in Web Clipper server enabled accepts pairing requests from any website, because the pairing endpoints do not reject HTTP or HTTPS origins (CWE-346). A remote attacker needs a victim to approve a generic prompt that does not show the requesting origin. The attacking page then receives a permanent API token that gives ongoing read and write access to notes, folders, tags, resources and master keys.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.13, when Joplin Desktop is running with the opt-in Web Clipper server enabled, the server in packages/lib/ClipperServer.ts sends Access-Control-Allow-Origin: * and allows an arbitrary website to call POST /auth and GET /auth/check because the pairing endpoints do not reject HTTP or HTTPS origins. The desktop confirmation dialog does not identify the requesting origin, so a victim who approves the generic prompt authorizes the attacking page, which then receives the permanent API token. The token provides ongoing read and write access to notes, folders, tags, resources, and master keys. This issue is fixed in version 3.7.13.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00145 3rd percentileScored 2026-11-07
Fix Fixed joplin (laurent22): 3.7.13

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

VendorProductAffected versionsFixed inStatusSource
laurent22joplinbefore 3.7.133.7.13Patch availableCNA
  • joplin Vendorlaurent22 Affected before 3.7.13 Fixed in 3.7.13 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:*:*:*——laurent22
  • cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:*:*:* Versions — — ·laurent22

Remediation

Upgrade Joplin Desktop to version 3.7.13, which fixes this issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA joplin (laurent22) Fixed in 3.7.13

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-105783
  2. 2026-10-06 CISA SSVC decision points changed
  3. 2026-10-06 Priority changed: MEDIUM → LOW

References

Other 4

  • TI-2023-24472 Arbitrary code execution on click of PDF links in Joplin CVSS 3.1CRITICAL 9.0
  • TI-2024-32950 Remote Code Execution on click of <a> Link in markdown preview CVSS 3.1CRITICAL 9.6
  • TI-2024-27054 Joplin has a parsing error leading to Cross-site Scripting (XSS) CVSS 3.1CRITICAL 9.7
  • TI-2026-34297 Joplin: SSO Auth Code Login Missing Rate Limiting — 9-Digit Numeric Code Brute-Forceable via Unprotected Endpoint CVSS 4.0CRITICAL 9.1
  • TI-2025-17795 Cross-site Scripting (XSS) in Rich Text Editor allows arbitrary code execution in Joplin CVSS 3.1CRITICAL 9.6
  • TI-2025-19991 Privilege escalation in Joplin server via user patch endpoint CVSS 3.1HIGH 8.8
See all 39 →

Sources

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