{"cve":"CVE-2021-34636","nvd":{"published":"2021-09-28T14:15:07.897","modified":"2026-06-17T03:56:16.517","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-352"],"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"],"products":["wpdevart:countdown_and_countup\\,_woocommerce_sales_timer"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-34636","score":0.00625,"percentile":0.4998,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}