What’s Vulnerable › Vulnerabilities

CVE-2024-2017: Countdown, Coming Soon, Maintenance – Countdown & Clock <= 2.7.8 - Missing Authorization to Authenticated (Subscriber+) PHP Object Injection

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-06-06 · updated 2026-06-17
• Weakness: CWE-862

Description

The Countdown, Coming Soon, Maintenance – Countdown & Clock plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on the conditionsRow and switchCountdown functions in all versions up to, and including, 2.7.8. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject PHP Objects and modify the status of countdowns.

Affected products

• Adam Skaat Countdown & Clock (WordPress plugin): before 2.7.8.1 — fixed in 2.7.8.1

How to fix

Upgrade to a fixed version: Adam Skaat Countdown & Clock (WordPress plugin) 2.7.8.1. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/countdown-builder/trunk/classes/Ajax.php#L51
• https://plugins.trac.wordpress.org/browser/countdown-builder/trunk/classes/Ajax.php#L92
• https://plugins.trac.wordpress.org/changeset/3096150/
• https://plugins.trac.wordpress.org/changeset/3097588/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d8fab229-cd6b-45a3-9e80-a03a1704ad3e?source=cve
• https://plugins.trac.wordpress.org/browser/countdown-builder/trunk/classes/Ajax.php#L51
• https://plugins.trac.wordpress.org/browser/countdown-builder/trunk/classes/Ajax.php#L92
• https://plugins.trac.wordpress.org/changeset/3096150/
• https://plugins.trac.wordpress.org/changeset/3097588/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/d8fab229-cd6b-45a3-9e80-a03a1704ad3e?source=cve

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