CVE-2021-24879 json
SupportCandy < 2.2.7 - CSRF to Cross-Site Scripting
published 2022-02-07 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-11791
- cvss
- 8.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- supportcandy supportcandy 2.2.7
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/6dfb4f61-c8cb-40ad-812f-139482be0fb4 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
Affected products
- Unknown SupportCandy – Helpdesk & Support Ticket System
Classification
- Weakness
-
- CWE-352 Cross-Site Request Forgery
- Technology feeds
References
-
wpscan.com
/vulnerability/6dfb4f61-c8cb-40ad-812f-139482be0fb4
exploit, third-party-advisory
Sources
- CVE List CVE-2021-24879
- NVD CVE-2021-24879
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.