CVE-2021-4378 WP Quick FrontEnd Editor <= 5.5 - Authenticated (Subscriber+) Stored Cross-Site Scripting
Authenticated attackers with subscriber permissions can inject arbitrary scripts into pages via the WP Quick FrontEnd Editor plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-4378?
CVE-2021-4378 is a medium-severity cross-site scripting vulnerability in labibahmed42 WP Quick FrontEnd Editor – WordPress Plugin, published on 7 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WP Quick FrontEnd Editor plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 5.5 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with minimal permissions like subscribers, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Weakness: CWE-79
Which versions are affected by CVE-2021-4378?
It affects 1 product.
Products include Webdevocean Wp Quick Frontend Editor.
How do I fix CVE-2021-4378?
No fix has been published for CVE-2021-4378 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-2021-4378 being exploited?
There is no known exploitation of CVE-2021-4378 in the wild and no public exploit code.
Other vulnerabilities in labibahmed42 WP Quick FrontEnd Editor – WordPress Plugin
Sources
Also known as GHSA-qxg7-cvq5-m7w7.