CVE-2021-33562 Cross-site scripting in Shopizer

What is CVE-2021-33562?

CVE-2021-33562 is a medium-severity cross-site scripting vulnerability in n/a, published on 24 May 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

A reflected cross-site scripting (XSS) vulnerability in Shopizer before 2.17.0 allows remote attackers to inject arbitrary web script or HTML via the ref parameter to a page about an arbitrary product, e.g., a product/insert-product-name-here.html/ref= URL.

Weakness: CWE-79

Which versions are affected by CVE-2021-33562?

2 open source packages ship an affected version, including com.shopizer:shopizer. It affects 1 product.

Products include Shopizer Shopizer.

How do I fix CVE-2021-33562?

Upgrade com.shopizer:shopizer to 2.17.0 or later.

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-2021-33562 being exploited?

There is no known exploitation of CVE-2021-33562 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in n/a

• CVE-2020-11006 Potential remote code execution in Shopizer Critical 9.1
• CVE-2022-23063 Shopizer - Insufficient Session Expiration High 8.8
• CVE-2025-51605 Security feature bypass in n/a High 8.1
• CVE-2014-4963 Missing authorization in n/a Medium 6.8
• CVE-2014-4964 Cross-site request forgery in n/a Medium 6.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-378p-hrq3-x4p3.