CVE-2021-24623: WordPress Advanced Ticket System < 1.0.64 - Authenticated Stored Cross-Site Scripting (XSS)

Severity: medium (CVSS 4.8 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: 2021-09-13 · updated 2026-06-17
Weakness: CWE-79

Description

The WordPress Advanced Ticket System, Elite Support Helpdesk WordPress plugin before 1.0.64 does not sanitize or escape form values before saving to the database or when outputting, which allows high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

Affected products

WordPress Advanced Ticket System, Elite Support Helpdesk: before 1.0.64 — fixed in 1.0.64

How to fix

Upgrade to a fixed version: WordPress Advanced Ticket System, Elite Support Helpdesk 1.0.64. Check the vendor advisory for mitigations.

References

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