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CVE-2026-81778— WordPress Kalles Addons plugin <= 1.0.6 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
The4 Kalles Addons
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.

Kalles Addons 插件 1.0.6 及之前版本存在订阅者跨站脚本（XSS）漏洞。

CVSS 6.5 · Medium

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-81778

Vulnerability Information
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Vulnerability Title
WordPress Kalles Addons plugin <= 1.0.6 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Subscriber Cross Site Scripting (XSS) in Kalles Addons <= 1.0.6 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
The4 Kalles Addons n/a ~ 1.0.6 -

II. Public POCs for CVE-2026-81778

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III. Intelligence Information for CVE-2026-81778

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Vendor Advisories for CVE-2026-81778 (1)

IV. Related Vulnerabilities

Same product: Kalles Addons
Same vendor: The4
Same weakness: CWE-79

V. Comments for CVE-2026-81778

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