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CVE-2023-2558: WPCS – WordPress Currency Switcher Professional <= 1.1.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-09 · updated 2026-06-17
• Weakness: CWE-79

Description

The WPCS – WordPress Currency Switcher Professional plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's wpcs_current_currency shortcode in versions up to, and including, 1.1.9 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• realmag777 WPCS – WordPress Currency Switcher Professional: through 1.1.9

References

• https://plugins.trac.wordpress.org/changeset/2911049/currency-switcher
• https://www.wordfence.com/threat-intel/vulnerabilities/id/be054481-89b4-47d8-ad06-8622edea367f?source=cve
• https://plugins.trac.wordpress.org/changeset/2911049/currency-switcher
• https://www.wordfence.com/threat-intel/vulnerabilities/id/be054481-89b4-47d8-ad06-8622edea367f?source=cve

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