Is CVE-2026-0552 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-0552 being exploited in the wild.

How severe is CVE-2026-0552?

Medium severity, with a CVSS score of 6.4, published 4 April 2026.

Which products and versions are affected?

mra13 Simple Shopping Cart up to, and including, 5.2.4.

Is there a fix for CVE-2026-0552?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-0552 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-0552?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-0552: WordPress Simple Shopping Cart Stored XSS in wpsc_display_product shortcode

CVE-2026-0552 · Severity: medium · CVSS 6.4 · Published 2026-04-04

The Simple Shopping Cart plugin for WordPress, which allows site owners to sell products and services, contains a security flaw in how it handles product display codes. This vulnerability allows an attacker with basic contributor-level access to embed malicious scripts into website pages. When unsuspecting visitors or administrators view these pages, the scripts could execute, potentially leading to unauthorized actions or the theft of sensitive session information.

Quick answers

Is CVE-2026-0552 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-0552 being exploited in the wild.
How severe is CVE-2026-0552?: Medium severity, with a CVSS score of 6.4, published 4 April 2026.
Which products and versions are affected?: mra13 Simple Shopping Cart up to, and including, 5.2.4.
Is there a fix for CVE-2026-0552?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-0552 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-0552?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The Simple Shopping Cart plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) due to insufficient input sanitization and output escaping on user-supplied attributes within the 'wpsc_display_product' shortcode. An authenticated attacker with contributor-level permissions or higher can exploit this by injecting arbitrary web scripts into a post or page. Because the shortcode attributes are not properly neutralized before being rendered, the script is stored on the server and executes in the browser of any user who views the affected content. This vulnerability is present in all versions up to and including 5.2.4; a fix was introduced in subsequent updates.

Affected products

mra13 Simple Shopping Cart up to, and including, 5.2.4

Timeline

2026-04-04: disclosed
2026-04-04: advisory

References

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