CVE-2021-24837 Passster < 3.5.5.8 - Contributor+ Stored Cross-Site Scripting
Contributors can inject malicious scripts via the shortcode area parameter, potentially compromising user sessions or site integrity.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-24837?
CVE-2021-24837 is a medium-severity cross-site scripting vulnerability in Unknown Passster, published on 23 Jan 2023. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
The Passster WordPress plugin before 3.5.5.8 does not escape the area parameter of its shortcode, which could allow users with a role as low as Contributor to perform Cross-Site Scripting attacks.
Which versions are affected by CVE-2021-24837?
It affects 1 product.
Products include Passster Project Passter.
How do I fix CVE-2021-24837?
No fix has been published for CVE-2021-24837 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-2021-24837 being exploited?
There is no known exploitation of CVE-2021-24837 in the wild and no public exploit code.
Other vulnerabilities in Unknown Passster
Sources
Also known as GHSA-mj4m-mqjg-cm54.