SSRF in Shaarli

CVE-2026-105263

A security flaw has been discovered in Shaarli up to 0.16.3. The affected element is the function MetadataController of the file application/front/controller/admin/MetadataController.php of the component Admin Metadata Endpoint. Performing a manipulation of the argument url results in server-side request forgery. The attack may be initiated remotely. Upgrading to version 0.16.4 is sufficient to fix this issue. The patch is named 8ca4de8e7c932a684481f5fbb1229fe16de1f4d2. It is advisable to upgrade the affected component.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

  • Shaarli — versions 0.16.0, 0.16.1, 0.16.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-105263?
CVE-2026-105263 is a medium-severity vulnerability in Shaarli, classified under Server-Side Request Forgery (SSRF). CVSS score: 4.7/10. Published 2026-10-05.
How severe is CVE-2026-105263?
Medium severity. CVSS v3 base score is 4.7 out of 10.