Stored Cross-Site Scripting in Ultimate Product Catalog by Etoile Web Design
CVE-2021-47924

5.1MEDIUM

Key Information:

Vendor

WordPress
Status
Ultimate Product Catalog
Vendor
CVE Published:
10 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47924?

A stored cross-site scripting (XSS) vulnerability has been identified in version 5.8.2 of the Ultimate Product Catalog, allowing authenticated users to inject malicious HTML or JavaScript into the product's price field. This vulnerability can be exploited through crafted POST requests to the post.php endpoint. When the affected product page is accessed, arbitrary scripts execute within the context of the user's session, potentially leading to severe security compromises.

Affected Version(s)

Ultimate Product Catalog 5.8.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47924 - Proof of Concept

References

https://www.exploit-db.com/exploits/50534
exploit
https://www.etoilewebdesign.com
product
https://wordpress.org/plugins/ultimate-product-catalogue/
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Murat DEMIRCI (@murat0x7)
.