CVE-2021-24425 myStickymenu < 2.5.2 - Authenticated Stored XSS
Authenticated high-privilege users can inject malicious JavaScript into the myStickymenu plugin settings, leading to stored XSS on the blog front-end.
- 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-2021-24425?
CVE-2021-24425 is a medium-severity cross-site scripting vulnerability in Unknown Floating Notification Bar, Sticky Menu on Scroll, and Sticky Header for Any Theme – myStickymenu, published on 2 Aug 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
The Floating Notification Bar, Sticky Menu on Scroll, and Sticky Header for Any Theme – myStickymenu WordPress plugin before 2.5.2 does not sanitise or escape its Bar Text settings, allowing hight privilege users to use malicious JavaScript in it, leading to a Stored Cross-Site Scripting issue, which will be triggered in the plugin's setting, as well as all front-page of the blog (when the Welcome bar is active)
Weakness: CWE-79
Which versions are affected by CVE-2021-24425?
It affects 1 product.
Products include Premio Mystickymenu.
How do I fix CVE-2021-24425?
No fix has been published for CVE-2021-24425 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-2021-24425 being exploited?
There is no known exploitation of CVE-2021-24425 in the wild and no public exploit code.
Other vulnerabilities in Unknown Floating Notification Bar, Sticky Menu on Scroll, and Sticky Header for Any Theme – myStickymenu
Sources
Also known as GHSA-fc78-8j4r-qq56.