CVE-2026-110903— WordPress The Events Calendar plugin <= 6.18.1 - Cross Site Scripting (XSS) vulnerability
Quick assessment
Affected
Liquid Web / StellarWP The Events Calendar
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.
Liquid Web / StellarWP 的 The Events Calendar（the-events-calendar）插件存在“网页生成期间输入未正确中和”漏洞（即跨站脚本攻击，XSS），可导致存储型 XSS 攻击。该问题影响 The Events Calendar 从未知版本至 6.18.1 的所有版本。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Liquid Web / StellarWP | The Events Calendar | ≤ 6.18.1 |
affected |
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I. Basic Information for CVE-2026-110903
Vulnerability Information
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Vulnerability Title
WordPress The Events Calendar plugin <= 6.18.1 - 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 Liquid Web / StellarWP The Events Calendar the-events-calendar allows Stored XSS.This issue affects The Events Calendar: from n/a through 6.18.1.
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 |
|---|---|---|---|---|
| Liquid Web / StellarWP | The Events Calendar | 0 ~ 6.18.1 | - |
|
II. Public POCs for CVE-2026-110903
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Pages for CVE-2026-110903 (1)
Same Patch Batch · Liquid Web / StellarWP · 2026-10-16 · 3 CVEs total
| CVE-2026-111396 | 7.1 HIGH | WordPress Advanced Post Manager plugin <= 4.5.6 - Broken Access Control vulnerability |
| CVE-2026-110900 | 5.3 MEDIUM | WordPress BookIt plugin <= 2.6.0.5 - Broken Access Control vulnerability |
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V. Comments for CVE-2026-110903
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