CVE-2021-23414 Cross-site Scripting (XSS)

What is CVE-2021-23414?

CVE-2021-23414 is a medium-severity cross-site scripting vulnerability in Fedoraproject Fedora, published on 28 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This affects the package video.js before 7.14.3. The src attribute of track tag allows to bypass HTML escaping and execute arbitrary code.

Weakness: CWE-79

Which versions are affected by CVE-2021-23414?

2 open source packages ship an affected version, including video.js. It affects 2 products.

Products include Fedoraproject Fedora, Videojs Video.js.

How do I fix CVE-2021-23414?

Upgrade video.js to 7.14.3 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-2021-23414 being exploited?

There is no known exploitation of CVE-2021-23414 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

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

Also known as GHSA-pp7m-6j83-m7r6.