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CVE-2026-121570— WordPress RSVP and Event Management plugin <= 2.7.17 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
WP Chill RSVP and Event Management
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.

WP Chill RSVP and Event Management 插件在生成网页时存在输入未正确中和的漏洞（跨站脚本攻击，XSS），可导致存储型 XSS 攻击。该问题影响 RSVP and Event Management 插件的所有版本，从未知版本起至 2.7.17 版本（含）。

CVSS 7.1 · High
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I. Basic Information for CVE-2026-121570

Vulnerability Information
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Vulnerability Title
WordPress RSVP and Event Management plugin <= 2.7.17 - 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 WP Chill RSVP and Event Management rsvp allows Stored XSS.This issue affects RSVP and Event Management: from n/a through 2.7.17.
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
WP Chill RSVP and Event Management 0 ~ 2.7.17 -

II. Public POCs for CVE-2026-121570

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III. Intelligence Information for CVE-2026-121570

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Other References for CVE-2026-121570 (1)

IV. Related Vulnerabilities

Same product: RSVP and Event Management
Same vendor: WP Chill
Same weakness: CWE-79