CVE-2021-36872 WordPress Popular Posts plugin <= 5.3.3 - Authenticated Persistent Cross-Site Scripting (XSS) vulnerability
Authenticated attackers can inject persistent scripts via the post_type widget parameter, potentially hijacking user sessions.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-36872?
CVE-2021-36872 is a medium-severity cross-site scripting vulnerability in Hector Cabrera WordPress Popular Posts, published on 23 Sep 2021. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Authenticated Persistent Cross-Site Scripting (XSS) vulnerability in WordPress Popular Posts plugin (versions <= 5.3.3). Vulnerable at &widget-wpp[2][post_type].
Weakness: CWE-79
Which versions are affected by CVE-2021-36872?
It affects 1 product.
Products include Wordpress Popular Posts Project Wordpress Popular Posts.
How do I fix CVE-2021-36872?
No fix has been published for CVE-2021-36872 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-2021-36872 being exploited?
There is no known exploitation of CVE-2021-36872 in the wild and no public exploit code.
Other vulnerabilities in Hector Cabrera WordPress Popular Posts
- CVE-2021-42362 WordPress Popular Posts <= 5.3.2 Authenticated Arbitrary File Upload
- CVE-2022-43468 Business logic in WordPress Popular Posts
- CVE-2023-45607 WordPress WordPress Popular Posts Plugin <= 6.3.2 is vulnerable to Cross Site Scripting (XSS)
- CVE-2021-20746 Cross-site scripting in WordPress Popular Posts
Sources
Also known as GHSA-4g64-jfhc-95g2.