CVE-2021-36839 Cross-site scripting in Social Media Follow Buttons Bar (WordPress plugin)
Authenticated administrators can inject malicious scripts into the Social Media Follow Buttons Bar plugin, potentially compromising user sessions.
- 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-2021-36839?
CVE-2021-36839 is a medium-severity cross-site scripting vulnerability in Space X-Chimp Social Media Follow Buttons Bar (WordPress plugin), published on 30 Sep 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.
Official description
Authenticated (admin+) Stored Cross-Site Scripting (XSS) vulnerability in Social Media Follow Buttons Bar plugin <= 4.73 at WordPress.
Weakness: CWE-79
Which versions are affected by CVE-2021-36839?
It affects 1 product.
Products include Spacexchimp Social Media Follow Buttons Bar.
How do I fix CVE-2021-36839?
No fix has been published for CVE-2021-36839 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-2021-36839 being exploited?
There is no known exploitation of CVE-2021-36839 in the wild and no public exploit code.
Sources
Also known as GHSA-pjp7-ffv7-qj9m.