CVE-2021-24129: Themify Portfolio Post < 1.1.6 - Authenticated Stored Cross-Site Scripting

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-03-18 · updated 2026-06-17
Weakness: CWE-79

Description

Unvalidated input and lack of output encoding in the Themify Portfolio Post WordPress plugin, versions before 1.1.6, lead to Stored Cross-Site Scripting (XSS) vulnerabilities allowing low-privileged users (Contributor+) to inject arbitrary JavaScript code or HTML in posts where the Themify Custom Panel is embedded, which could lead to privilege escalation.

Affected products

Themify Portfolio Post: before 1.1.6 — fixed in 1.1.6

How to fix

Upgrade to a fixed version: Themify Portfolio Post 1.1.6. Check the vendor advisory for mitigations.

References

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