CVE-2021-25090: GridKit Portfolio < 2.1.0 - Subscriber+ Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 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: 2022-04-11 · updated 2026-06-17
Weakness: CWE-79

Description

The Portfolio Gallery, Product Catalog WordPress plugin before 2.1.0 does not have authorisation and CSRF checks in various functions related to AJAX actions, allowing any authenticated users, such as subscriber, to call them. Due to the lack of sanitisation and escaping, it could also allows attackers to perform Cross-Site Scripting attacks on pages where a Portfolio is embed

Affected products

grid-kit-premium: before 2.1.0 — fixed in 2.1.0

How to fix

Upgrade to a fixed version: grid-kit-premium 2.1.0. Check the vendor advisory for mitigations.

References

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