CVE-2021-24275 Popup by Supsystic < 1.10.5 - Reflected Cross-Site scripting (XSS)
Attackers can inject malicious scripts via the tab parameter in the Popup by Supsystic plugin options page, potentially compromising user sessions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24275?
CVE-2021-24275 is a medium-severity cross-site scripting vulnerability in Popup by Supsystic, published on 5 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
The Popup by Supsystic WordPress plugin before 1.10.5 did not sanitise the tab parameter of its options page before outputting it in an attribute, leading to a reflected Cross-Site Scripting issue
Weakness: CWE-79
Which versions are affected by CVE-2021-24275?
It affects 1 product.
Products include Supsystic Popup.
How do I fix CVE-2021-24275?
No fix has been published for CVE-2021-24275 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-2021-24275 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24275 exists.
Public exploit code: 1 Exploit-DB entry and 1 Nuclei template.
Other vulnerabilities in Popup by Supsystic
- CVE-2023-3186 Supsystic Popup < 1.10.19 - Prototype Pollution
- CVE-2024-52434 WordPress Popup by Supsystic plugin <= 1.10.29 - Remote Code Execution (RCE) vulnerability
- CVE-2016-10915 Cross-site request forgery in n/a
- CVE-2023-39997 WordPress Popup by Supsystic plugin <= 1.10.19 - Broken Access Control Vulnerability
- CVE-2023-51353 WordPress Popup by Supsystic plugin <= 1.10.19 - Broken Access Control vulnerability
Sources
Also known as GHSA-xh33-9j66-fv2x.