High severity7.1NVD Advisory· Published Jul 13, 2026· Updated Jul 13, 2026No known patch

CVE-2026-57403

No known patch is available for this vulnerability.

The affected plugin has not been updated on WordPress.org since before this CVE was disclosed; the latest installable version is still vulnerable. If you have the affected software installed, you should uninstall or replace it rather than wait for an update.

CVE-2026-57403

Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Milan Petrovic GD Security Headers gd-security-headers allows Reflected XSS.This issue affects GD Security Headers: from n/a through <= 1.8.

Affected products

WordPress/Gd Security Headersllm-fuzzy
Range: <=1.8
Package: https://wordpress.org/plugins/gd-security-headers

Patches

Vulnerability mechanics

References

patchstack.com/database/Wordpress/Plugin/gd-security-headers/vulnerability/wordpress-gd-security-headers-plugin-1-8-cross-site-scripting-xss-vulnerabilitynvd

News mentions

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