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CVE-2021-24498— Calendar Event Multi View < 1.4.01 - Unauthenticated Reflected Cross-Site Scripting (XSS)

Quick assessment

Affected
Unknown Calendar Event Multi View
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress是Wordpress基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress 插件是WordPress开源的一个应用插件。 The Calendar Event Multi View WordPress Plugin 存在安全漏洞，该漏洞源于在1.4.01版本之前的此插件在将“start”和“end”GET参数输出到页面之前(通过php edit.php)没有清理或转义它们，导致了一个反映跨站点脚本问题。

AI Predicted 6.1 Difficulty: Trivial EPSS 3.54% · P88

Public Exploits 1

Nuclei · 1 CVE-2021-24498.yaml [template]
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I. Basic Information for CVE-2021-24498

Vulnerability Information
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Vulnerability Title
Calendar Event Multi View < 1.4.01 - Unauthenticated Reflected Cross-Site Scripting (XSS)
Source: CVE Program / CVE List V5
Vulnerability Description
The Calendar Event Multi View WordPress plugin before 1.4.01 does not sanitise or escape the 'start' and 'end' GET parameters before outputting them in the page (via php/edit.php), leading to a reflected Cross-Site Scripting issue.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 插件跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress是Wordpress基金会的一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress 插件是WordPress开源的一个应用插件。 The Calendar Event Multi View WordPress Plugin 存在安全漏洞，该漏洞源于在1.4.01版本之前的此插件在将“start”和“end”GET参数输出到页面之前(通过php edit.php)没有清理或转义它们，导致了一个反映跨站点脚本问题。
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
Unknown Calendar Event Multi View 1.4.01 ~ 1.4.01 -

II. Public POCs for CVE-2021-24498

# POC Description Source Link Shenlong Link
1 WordPress Calendar Event Multi View plugin before 1.4.01 contains an unauthenticated reflected cross-site scripting vulnerability. It does not sanitize or escape the 'start' and 'end' GET parameters before outputting them in the page (via php/edit.php). https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-24498.yaml POC Details
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III. Intelligence Information for CVE-2021-24498

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Vendor Advisories for CVE-2021-24498 (1)

Same Patch Batch · Unknown · 2021-08-02 · 26 CVEs total

CVE-2021-24473 User Profile Picture < 2.6.0 - Arbitrary User Picture Change/Deletion via IDOR
CVE-2021-24444 TaxoPress < 3.0.7.2 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24371 RSVPMaker < 8.7.3 - Authenticated (admin+) SSRF
CVE-2021-24425 myStickymenu < 2.5.2 - Authenticated Stored XSS
CVE-2021-24428 RSS for Yandex Turbo <= 1.30 - Authenticated Stored XSS
CVE-2021-24430 Speed Booster Pack 4.2.0-beta - Authenticated (admin+) RCE
CVE-2021-24443 Youzify < 1.0.7 - Stored Cross-Site Scripting via Biography
CVE-2021-24448 Profile Builder < 3.4.8 - Authenticated Stored XSS
CVE-2021-24450 ProfilePress < 3.1.8 - Authenticated Stored XSS
CVE-2021-24455 Tutor LMS < 1.9.2 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24464 YouTube Embed, Playlist and Popup < 2.3.9 - Contributor+ Stored XSS
CVE-2021-24468 Leaflet Map < 3.0.0 - Contributor+ Stored XSS
CVE-2021-24470 Yada Wiki < 3.4.1 - Contributor+ Stored XSS
CVE-2021-24504 WP LMS <= 1.1.2 - Stored Cross-Site Scripting (XSS)
CVE-2021-24474 Awesome Weather Widget <= 3.0.2 - Reflected Cross-site Scripting (XSS)
CVE-2021-24476 Steam Group Viewer <= 2.1 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24477 Migrate Users <= 1.0.1 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24478 Bookshelf <= 2.0.4 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24479 DrawBlog <= 0.90 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24480 Event Geek <= 2.5.2 - Stored Cross-site Scripting (XSS)

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Calendar Event Multi View
Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24498

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