CVE-2026-16495

medium

Description

The Countdown Timer – Widget Countdown plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'redirect_url' Shortcode Attribute in all versions up to, and including, 3.0.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/7d757080-d2dc-49f9-bdc6-dba762a8f981?source=cve

https://plugins.trac.wordpress.org/browser/widget-countdown/tags/3.0.1/includes/legacy/front_end.php#L169

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-100788

Details

Source: Mitre, NVD

Published: 2026-10-14

Updated: 2026-10-14

Risk Information

CVSS v2

Base Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.00199