Vulnerability · Published Jul 13, 2026 · Assigned by Patchstack
CVE-2026-57403WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability
High 7.1
In plain English
A high-severity cross-site scripting in GD Security Headers from Milan Petrovic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.3%top 83.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Milan Petrovic | GD Security Headers | 0 – through 1.8 |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L