PT-2026-39500 · WordPress · The Ultimate Product Catalog

Murat Demirci · Published 2026-05-10 · Updated 2026-05-10 · CVE-2021-47924

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Ultimate Product Catalog version 5.8.2

Description A stored cross-site scripting issue allows authenticated attackers to inject malicious scripts. This is achieved by submitting POST requests to the 'post.php' endpoint using the price parameter to include HTML or JavaScript payloads, which then execute arbitrary code when a product is viewed.

Recommendations As a temporary workaround, restrict or validate the input of the price parameter in the 'post.php' endpoint. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-47924

Affected Products

The Ultimate Product Catalog

References · 6

• 🔥 https://exploit-db.com/exploits/50534 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-47924 · Security Note
• https://vulncheck.com/advisories/wordpress-plugin-ultimate-product-catalog-stored-xss-via-price · Note
• https://wordpress.org/plugins/ultimate-product-catalogue · Note
• https://etoilewebdesign.com · Note
• https://twitter.com/CVEnew/status/2053537440804335803 · Twitter Post