CVE-2026-57403 PUBLISHED

WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability

Assigner: Patchstack
Reserved: 24.06.2026 Published: 13.07.2026 Updated: 13.07.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
CVSS Score: 7.1

Attack Vector	Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	Low
Privileges Required	None	Integrity Impact	Low
User Interaction	Required	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	Milan Petrovic
Product	GD Security Headers
Versions	Default: unaffected affected from 0 to 1.8 (incl.)

Credits

HaiND | Patchstack Bug Bounty Program finder

References

https://patchstack.com/database/Wordpress/Plugin/gd-security-headers/vulnerability/wordpress-gd-security-headers-plugin-1-8-cross-site-scripting-xss-vulnerability?_s_id=cve

Problem Types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE

Impacts

Reflected XSS