CVE-2023-0559: GS Portfolio for Envato < 1.4.0 - Contributor+ Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-02-21 · updated 2026-06-17

Description

The GS Portfolio for Envato WordPress plugin before 1.4.0 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embedded, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks

Affected products

GS Portfolio for Envato: before 1.4.0 — fixed in 1.4.0

How to fix

Upgrade to a fixed version: GS Portfolio for Envato 1.4.0. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/e5549261-66e2-4a5e-8781-bc555b629ccc
https://wpscan.com/vulnerability/e5549261-66e2-4a5e-8781-bc555b629ccc

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