CVE-2026-16495

Countdown Timer – Widget Countdown <= 3.0.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'redirect_url' Shortcode Attribute

MEDIUM
6.4
CVSS Score
Published: October 14, 2026 at 03:40 AM UTC
Updated: October 14, 2026 at 03:17 PM UTC
1 product affected across 1 vendorCountdown Timer – Widget Countdown

Using Countdown Timer – Widget Countdown by wpdevart?

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Severity
MEDIUM6.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.4MEDIUMWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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