Answer in brief
CVE-2026-57403 records a High severity (CVSS 7.1) vulnerability in WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps Milan Petrovic/GD Security Headers (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Milan Petrovic/GD Security Headers (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Milan Petrovic/GD Security Headersgeneric | 0 | Not reported |
Published upstream
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 13, 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-57403 records a High severity (CVSS 7.1) vulnerability in WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability. The current sources do not mark it as known exploited. The current feed maps Milan Petrovic/GD Security Headers (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Milan Petrovic/GD Security Headers (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Milan Petrovic/GD Security Headersgeneric | 0 | Not reported |
Published upstream
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 13, 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.
Quoted source text, attributed separately from HOL analysis.