Threat intelligence

BetterLinks <= 3.1.0 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Short URL Creation via create_fbs_link AJAX Action

CVE-2026-19801 · betterlinks

Important: Seeing this vulnerability listed does not mean your website is affected. Exposure depends on whether you run Betterlinks at a vulnerable version. How SiteRespond intelligence works

Vulnerability: BetterLinks <= 3.1.0 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Short URL Creation via create_fbs_link AJAX Action
Affected software: betterlinks(Plugin)
Affected versions: ≤ 3.1.0
Authentication: Authenticated (see advisory title)
Vulnerability type: Other
CVE: CVE-2026-19801
Published: 24 August 2026
CISA KEV: Not listed in CISA KEV at last catalog refresh
Impact: This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.
Source: Data imported from Wordfence Intelligence (advisory faf44730-b975-4057-96dc-7284775500f9). Methodology and redistribution notes

Check whether your installed version is affected

SiteRespond Defence matches your installed Betterlinks version against this catalog when the Defence plugin is connected to your WordPress site.

Start SiteRespond Defence for WordPress — £29.99/monthScan your website

All Betterlinks advisoriesBack to catalog