High 8.0Published Oct 5, 2026

CVE-2026-105783Joplin Web Clipper pairing allows cross-origin theft of a permanent API token

Updated under an hour ago (2026-10-19 07:30 UTC)

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It affects laurent22 joplin. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.14%, higher than 3% of scored CVEs.

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Every CVE for laurent22 joplin

Exploited in the last 30 days

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.

CVSS: 8.0 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-346, CWE-352
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.14% (percentile 3)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

laurent22 joplin laurent22:joplin (from the name)	before 3.7.13	CNA record

References

https://github.com/laurent22/joplin/security/advisories/GHSA-9728-v7ww-mxjvx-refsource-confirm
https://github.com/laurent22/joplin/pull/16276x-refsource-misc
https://github.com/laurent22/joplin/commit/27ae5c0d404ee47ad24862cce917dda6eb2930b7x-refsource-misc
https://github.com/laurent22/joplin/releases/tag/v3.7.13x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.