CVE-2023-2558 Cross-site scripting in WPCS – WordPress Currency Switcher Professional

Medium 6.4 Published 9 Jun 2023 Updated 8 Apr 2026

Authenticated attackers can inject arbitrary web scripts via a shortcode, leading to stored XSS execution on victim pages.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-2558?

CVE-2023-2558 is a medium-severity cross-site scripting vulnerability in realmag777 WPCS – WordPress Currency Switcher Professional, published on 9 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official 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.

Weakness: CWE-79

Which versions are affected by CVE-2023-2558?

It affects 1 product.

Products include Pluginus Wordpress Currency Switcher Professional.

How do I fix CVE-2023-2558?

No fix has been published for CVE-2023-2558 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2023-2558 being exploited?

There is no known exploitation of CVE-2023-2558 in the wild and no public exploit code.

Sources

Also known as GHSA-hm9j-rjfr-655c.