Currency Switcher <= 1.1.6 - Cross-site request forgery

8.8
Cross-Site Request Forgery (CSRF)
CVE CVE-2021-20780
CVSS 8.8 (High)
Publicly Published July 6, 2021
Last Updated January 22, 2024
Researcher Mizuki Takagi

Description

The Currency Switcher plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.1.6. This is due to missing or incorrect nonce validation on the print_plugin_options() function. This makes it possible for unauthenticated attackers to update the plugin's settings and inject malicious web scripts granted they can trick a site administrator into performing an action such as clicking on a link.

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Vulnerability Details for WPCS – WordPress Currency Switcher Professional

Software Type Plugin
Software Slug currency-switcher (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.1.7, or a newer patched version
Affected Version
  • <= 1.1.6
Patched Version
  • 1.1.7

Recent vulnerabilities in WPCS – WordPress Currency Switcher Professional

# Title CVE ID CVSS Researchers Date
1 WPCS – WordPress Currency Switcher Professional <= 1.3.1 - Unauthenticated Stored Cross-Site Scripting CVE-2026-42733 7.2 hhhai May 25, 2026
2 WPCS – WordPress Currency Switcher Professional <= 1.2.0.4 - Unauthenticated Arbitrary Shortcode Execution CVE-2025-2169 7.3 Arkadiusz Hydzik March 10, 2025
3 WPCS <= 1.2.0.3 - Unauthenticated Arbitrary Shortcode Execution CVE-2024-38700 6.5 stealthcopter July 10, 2024
4 WPCS <= 1.2.0.1 - Cross-Site Request Forgery CVE-2024-30456 4.3 Dhabaleshwar Das March 28, 2024
5 WPCS – WordPress Currency Switcher Professional <= 1.2.0 - Authenticated (Contributor+) Stored Cross-Site Scripting CVE-2023-51506 6.4 Ngô Thiên An (ancorn_) December 27, 2023
6 WPCS – WordPress Currency Switcher Professional <= 1.1.9 - Missing Authorization to Arbitrary Custom Drop-Down Currency Switcher Deletion CVE-2023-2556 4.3 Alex Thomas May 12, 2023
7 WPCS – WordPress Currency Switcher Professional <= 1.1.9 - Missing Authorization to Arbitrary Custom Drop-Down Currency Switcher Editing CVE-2023-2557 4.3 Alex Thomas May 12, 2023
8 WPCS – WordPress Currency Switcher Professional <= 1.1.9 - Missing Authorization to Custom Drop-Down Currency Switcher Creation CVE-2023-2555 4.3 Alex Thomas May 12, 2023
9 WPCS – WordPress Currency Switcher Professional <= 1.1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode CVE-2023-2558 6.4 Alex Thomas May 12, 2023

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