CVE-2021-24797: Tickera < 3.4.8.3 - Unauthenticated Stored Cross-Site Scripting

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-12-27 · updated 2026-06-17
Weakness: CWE-79

Description

The Tickera WordPress plugin before 3.4.8.3 does not properly sanitise and escape the Name fields of booked Events before outputting them in the Orders admin dashboard, which could allow unauthenticated users to perform Cross-Site Scripting attacks against admins.

Affected products

Tickera: before 3.4.8.3 — fixed in 3.4.8.3

How to fix

Upgrade to a fixed version: Tickera 3.4.8.3. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/0eb07cc8-8a19-4e01-ab90-844495413453
https://wpscan.com/vulnerability/0eb07cc8-8a19-4e01-ab90-844495413453

Get alerted when CVE-2021-24797 or the next vulnerability affects your stack