CVE-2026-110225
Shaarli through 0.16.9 contains a server-side request forgery vulnerability that allows authenticated users to make the server request internal addresses by fetching bookmark thumbnails without private-address checks.
Does this matter?
Lower severity and a low EPSS score (0.30%). Track it; it rarely justifies an emergency change on its own.
Description
Shaarli through 0.16.9 contains a server-side request forgery vulnerability that allows authenticated users to make the server request internal addresses by fetching bookmark thumbnails without private-address checks. Attackers can create bookmarks pointing to loopback, private, or cloud metadata addresses and trigger ThumbnailsController::ajaxUpdate or saving to send blind GET requests, with open_shaarli exposing this to any visitor.
- CVSS 4.0
- 5.1 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.30% probability · 23th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Source
- disclosure@vulncheck.com
EPSS moved from 0.3% on 14 October 2026 to 0.3% on 26 October 2026.
References
- https://github.com/shaarli/Shaarli
- https://github.com/shaarli/Shaarli/blob/bfeadb4e5856702c05279bb2a5c405f2ed802015/application/Thumbnailer.php#L82-L98
- https://github.com/shaarli/Shaarli/blob/bfeadb4e5856702c05279bb2a5c405f2ed802015/application/front/controller/admin/ThumbnailsController.php#L46-L64
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/shaarli-open-mode-thumbnail-fetch-ssrf
- https://www.vulncheck.com/advisories/shaarli-through-0.16.9-ssrf-via-thumbnail-retrieval-update-thumbnail-route
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/shaarli-open-mode-thumbnail-fetch-ssrf
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.