CVE-2021-24878 SupportCandy < 2.2.7 - Reflected Cross-Site Scripting
Attackers can inject malicious scripts via the query string in SupportCandy plugin pages, 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-2021-24878?
CVE-2021-24878 is a medium-severity cross-site scripting vulnerability in Unknown SupportCandy – Helpdesk & Support Ticket System, published on 7 Feb 2022. 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 SupportCandy WordPress plugin before 2.2.7 does not sanitise and escape the query string before outputting it back in pages with the [wpsc_create_ticket] shortcode embed, leading to a Reflected Cross-Site Scripting issue
Weakness: CWE-79
Which versions are affected by CVE-2021-24878?
It affects 1 product.
Products include Supportcandy Supportcandy.
How do I fix CVE-2021-24878?
No fix has been published for CVE-2021-24878 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-2021-24878 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-24878 exists.
Public exploit code: 1 Nuclei template.
Other vulnerabilities in Unknown SupportCandy – Helpdesk & Support Ticket System
Sources
Also known as GHSA-w9r7-4qpm-xxc5.