CVE-2026-82883— WordPress Login With Ajax plugin <= 4.5.1 - Cross Site Scripting (XSS) vulnerability
Quick assessment
Affected
Marcus Login With Ajax
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.
在生成网页时输入未正确中和（跨站脚本/XSS）漏洞： “Marcus 使用 Ajax 登录”插件存在反射型 XSS（跨站脚本）漏洞。 此问题影响“使用 Ajax 登录”插件的 n/a 至 4.5.1 版本。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-82883
Vulnerability Information
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Vulnerability Title
WordPress Login With Ajax plugin <= 4.5.1 - 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 Marcus Login With Ajax allows Reflected XSS.
This issue affects Login With Ajax: from n/a through 4.5.1.
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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Marcus | Login With Ajax | n/a ~ 4.5.1 | - |
|
II. Public POCs for CVE-2026-82883
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-82883 (1)
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V. Comments for CVE-2026-82883
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