Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-57403— WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Milan Petrovic GD Security Headers
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Milan Petrovic GD Security Headers是Milan Petrovic团队的一款网站安全增强插件 Milan Petrovic GD Security Headers 1.8及之前版本存在跨站脚本漏洞，该漏洞源于输入中和不当，可能导致反射型跨站脚本攻击。

CVSS 7.1 · High EPSS 0.25% · P15

Affected Version Matrix 1

VendorProduct Version RangeStatus
Milan Petrovic GD Security Headers ≤ 1.8 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-57403

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
WordPress GD Security Headers plugin <= 1.8 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
Milan Petrovic GD Security Headers 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Milan Petrovic GD Security Headers是Milan Petrovic团队的一款网站安全增强插件 Milan Petrovic GD Security Headers 1.8及之前版本存在跨站脚本漏洞，该漏洞源于输入中和不当，可能导致反射型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Milan Petrovic GD Security Headers 0 ~ 1.8 -

II. Public POCs for CVE-2026-57403

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-57403

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-57403 (1)

IV. Related Vulnerabilities

Same product: GD Security Headers
Same vendor: Milan Petrovic
Same weakness: CWE-79

V. Comments for CVE-2026-57403

No comments yet

Leave a comment