CVE-2021-24961 WordPress File Upload < 4.16.3 - Contributor+ Stored Cross-Site Scripting via Shortcode

What is CVE-2021-24961?

CVE-2021-24961 is a medium-severity cross-site scripting vulnerability in Unknown WordPress File Upload, published on 7 Mar 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

The WordPress File Upload WordPress plugin before 4.16.3, wordpress-file-upload-pro WordPress plugin before 4.16.3 does not escape some of its shortcode argument, which could allow users with a role as low as Contributor to perform Cross-Site Scripting attacks

Weakness: CWE-79

Which versions are affected by CVE-2021-24961?

It affects 2 products.

Products include Iptanus Wordpress File Upload, Iptanus Wordpress File Upload Pro.

How do I fix CVE-2021-24961?

No fix has been published for CVE-2021-24961 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-2021-24961 being exploited?

There is no known exploitation of CVE-2021-24961 in the wild and no public exploit code.

Other vulnerabilities in Unknown WordPress File Upload

• CVE-2024-11613 Code injection in Iptanus File Upload Critical 9.8
• CVE-2024-11635 WordPress File Upload <= 4.24.12 - Unuathenticated Remote Code Execution Critical 9.8
• CVE-2024-9047 The WordPress File Upload plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 4.24.11 via wfu_file_downloader.php. Critical 9.8
• CVE-2020-10564 Path traversal in n/a Critical 9.8
• CVE-2021-24962 WordPress File Upload < 4.16.3 - Contributor+ Path Traversal to RCE High 8.8

Sources

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

Also known as GHSA-v8xx-gxhg-qqpr.