CVE-2021-24378 Autoptimize < 2.7.8 - Authenticated Stored XSS via File Upload
Authenticated attackers can inject malicious JavaScript via file upload in the Autoptimize WordPress plugin, leading to stored XSS execution.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24378?
CVE-2021-24378 is a medium-severity cross-site scripting vulnerability in Unknown Autoptimize, published on 21 Jun 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Autoptimize WordPress plugin before 2.7.8 does not check for malicious files such as .html in the archive uploaded via the 'Import Settings' feature. As a result, it is possible for a high privilege user to upload a malicious file containing JavaScript code inside an archive which will execute when a victim visits index.html inside the plugin directory.
Weakness: CWE-79
Which versions are affected by CVE-2021-24378?
It affects 1 product.
Products include Autoptimize Autoptimize.
How do I fix CVE-2021-24378?
No fix has been published for CVE-2021-24378 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-2021-24378 being exploited?
There is no known exploitation of CVE-2021-24378 in the wild and no public exploit code.
Other vulnerabilities in Unknown Autoptimize
- CVE-2021-24376 Autoptimize < 2.7.8 - Arbitrary File Upload via "Import Settings"
- CVE-2021-24377 Autoptimize < 2.7.8 - Race Condition leading to RCE
- CVE-2020-24948 File upload in n/a
- CVE-2023-2113 Autoptimize < 3.1.7 - Admin+ Stored Cross-Site Scripting via Settings Import
- CVE-2022-2635 Autoptimize < 3.1.1 - Admin+ Stored Cross Site Scripting
Sources
Also known as GHSA-27r4-rp49-685c.