CVE-2021-34636: Countdown and CountUp, WooCommerce Sales Timer <= 1.5.7 Cross-Site Request Forgery to Stored Cross-Site Scripting

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-09-28 · updated 2026-06-17
Weakness: CWE-352

Description

The Countdown and CountUp, WooCommerce Sales Timers WordPress plugin is vulnerable to Cross-Site Request Forgery via the save_theme function found in the ~/includes/admin/coundown_theme_page.php file due to a missing nonce check which allows attackers to inject arbitrary web scripts, in versions up to and including 1.5.7.

Affected products

wpdevart Countdown and CountUp, WooCommerce Sales Timer: through 1.5.7

References

https://plugins.trac.wordpress.org/changeset/2605523/countdown-wpdevart-extended/trunk/includes/admin/coundown_theme_page.php
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34636
https://plugins.trac.wordpress.org/changeset/2605523/countdown-wpdevart-extended/trunk/includes/admin/coundown_theme_page.php
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34636

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