CVE-2021-33561 Cross-site scripting in Shopizer

What is CVE-2021-33561?

CVE-2021-33561 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 stored cross-site scripting (XSS) vulnerability in Shopizer before 2.17.0 allows remote attackers to inject arbitrary web script or HTML via customer_name in various forms of store administration. It is saved in the database. The code is executed for any user of store administration when information is fetched from the backend, e.g., in admin/customers/list.html.

Weakness: CWE-79

Which versions are affected by CVE-2021-33561?

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-2021-33561?

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-2021-33561 being exploited?

There is no known exploitation of CVE-2021-33561 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-rcp4-jm2v-mr3f.