CVE-2021-24879: SupportCandy < 2.2.7 - CSRF to Cross-Site Scripting

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-02-07 · updated 2026-06-17
Weakness: CWE-352

Description

The SupportCandy WordPress plugin before 2.2.7 does not have CSRF check in the wpsc_tickets AJAX action, nor has any sanitisation or escaping in some of the filter fields which could allow attackers to make a logged in user having access to the ticket lists dashboard set an arbitrary filter (stored in their cookies) with an XSS payload in it.

Affected products

SupportCandy: before 2.2.7 — fixed in 2.2.7

How to fix

Upgrade to a fixed version: SupportCandy 2.2.7. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/6dfb4f61-c8cb-40ad-812f-139482be0fb4
https://wpscan.com/vulnerability/6dfb4f61-c8cb-40ad-812f-139482be0fb4

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