CVE-2021-23174 WordPress Download Monitor plugin <= 4.4.6 - Auth. Stored Cross-Site Scripting (XSS) vulnerability

What is CVE-2021-23174?

CVE-2021-23174 is a low-severity cross-site scripting vulnerability in WPChill Download Monitor, published on 28 Jan 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

Authenticated (admin+) Persistent Cross-Site Scripting (XSS) vulnerability discovered in Download Monitor WordPress plugin (versions <= 4.4.6) Vulnerable parameters: &post_title, &downloadable_file_version[0].

Weakness: CWE-79

Which versions are affected by CVE-2021-23174?

It affects 1 product.

Products include Wpchill Download Monitor.

How do I fix CVE-2021-23174?

No fix has been published for CVE-2021-23174 yet. Limit exposure of the affected software until one is available.

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-2021-23174 being exploited?

There is no known exploitation of CVE-2021-23174 in the wild and no public exploit code.

Other vulnerabilities in WPChill Download Monitor

• CVE-2023-34007 WordPress Download Monitor Plugin <= 4.8.3 is vulnerable to Arbitrary File Upload Critical 9.9
• CVE-2024-30501 WordPress Download Monitor theme <= 4.9.4 - Auth. SQL Injection vulnerability High 7.6
• CVE-2022-4972 Download Monitor <= 4.7.51 - Missing Authorization to Unauthenticated Data Export High 7.5
• CVE-2021-24786 Download Monitor < 4.4.5 - Admin+ SQL Injection High 7.2
• CVE-2021-31567 WordPress Download Monitor plugin <= 4.4.6 - Authenticated Arbitrary File Download vulnerability Medium 6.8

Sources

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

Also known as GHSA-2523-v9j2-g44c.