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CVE-2026-84848— WordPress Quick Event Manager plugin <= 9.17 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
brightvesseldev Quick Event Manager
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.

WordPress Quick Event Manager是WordPress基金会的一款活动日程管理工具。 WordPress Quick Event Manager 9.17及之前版本存在跨站脚本漏洞，该漏洞源于容易受到未经验证的跨站脚本攻击。

CVSS 7.1 · High EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

VendorProduct Version RangeStatus
brightvesseldev Quick Event Manager n/a≤ 9.17 affected
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I. Basic Information for CVE-2026-84848

Vulnerability Information
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Vulnerability Title
WordPress Quick Event Manager plugin <= 9.17 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Cross Site Scripting (XSS) in Quick Event Manager <= 9.17 versions.
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
WordPress Quick Event Manager 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress Quick Event Manager是WordPress基金会的一款活动日程管理工具。 WordPress Quick Event Manager 9.17及之前版本存在跨站脚本漏洞，该漏洞源于容易受到未经验证的跨站脚本攻击。
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
brightvesseldev Quick Event Manager n/a ~ 9.17 -

II. Public POCs for CVE-2026-84848

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III. Intelligence Information for CVE-2026-84848

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Other References for CVE-2026-84848 (1)

Same Patch Batch · brightvesseldev · 2026-09-03 · 3 CVEs total

CVE-2026-84847 7.5 HIGH WordPress Quick Event Manager plugin <= 9.17 - Broken Access Control vulnerability
CVE-2026-84849 6.5 MEDIUM WordPress Pre-Orders for WooCommerce plugin <= 2.3 - Bypass Vulnerability vulnerability

IV. Related Vulnerabilities

Same product: Quick Event Manager
Same vendor: brightvesseldev
Same weakness: CWE-79

V. Comments for CVE-2026-84848

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