CVE-2021-34636
WordPress vulnerability analysis and mitigation

Overview

The Countdown and CountUp, WooCommerce Sales Timers WordPress plugin was found to be vulnerable to Cross-Site Request Forgery (CSRF) via the save_theme functionality in versions up to and including 1.5.7. The vulnerability was discovered by researcher Xu-Liang Liao and was disclosed on September 27, 2021 (Wordfence Intel).

Technical details

The vulnerability has been assigned a CVSS score of 8.8 (High) with the vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The core issue stems from a missing nonce check in the php file which allows attackers to inject arbitrary web scripts (NVD).

Impact

If successfully exploited, this vulnerability could allow attackers to perform unauthorized actions on behalf of authenticated users and potentially inject malicious web scripts into the application (Wordfence Advisories).

Additional resources


SourceThis report was generated using AI

Related WordPress vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-23550CRITICAL10
  • modular-connector
NoYesJan 14, 2026
CVE-2025-12166HIGH7.5
  • simply-schedule-appointments
NoYesJan 14, 2026
CVE-2026-0813MEDIUM4.4
  • short-link
NoNoJan 14, 2026
CVE-2026-0812MEDIUM4.4
  • linkedin-sc
NoNoJan 14, 2026
CVE-2026-0741MEDIUM4.4
  • electric-studio-download-counter
NoNoJan 14, 2026

Free Vulnerability Assessment

Benchmark your Cloud Security Posture

Evaluate your cloud security practices across 9 security domains to benchmark your risk level and identify gaps in your defenses.

Request assessment

Get a personalized demo

Ready to see Wiz in action?

"Best User Experience I have ever seen, provides full visibility to cloud workloads."
David EstlickCISO
"Wiz provides a single pane of glass to see what is going on in our cloud environments."
Adam FletcherChief Security Officer
"We know that if Wiz identifies something as critical, it actually is."
Greg PoniatowskiHead of Threat and Vulnerability Management