CVE-2021-24822: Stylish Cost Calculator < 7.04 - Subscriber+ Unauthorised AJAX Calls to Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-11-29 · updated 2026-06-17
Weakness: CWE-79

Description

The Stylish Cost Calculator WordPress plugin before 7.0.4 does not have any authorisation and CSRF checks on some of its AJAX actions (available to authenticated users), which could allow any authenticated users, such as subscriber to call them, and perform Stored Cross-Site Scripting attacks against logged in admin, as well as frontend users due to the lack of sanitisation and escaping in some parameters

Affected products

Stylish Cost Calculator Premium: before 7.0.4 — fixed in 7.0.4

How to fix

Upgrade to a fixed version: Stylish Cost Calculator Premium 7.0.4. Check the vendor advisory for mitigations.

References

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