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CVE-2021-24334— Instant Images WordPress Plugin < 4.4.0.1 - Authenticated Stored XSS & XFS

Quick assessment

Affected
Unknown Instant Images – One Click Unsplash Uploads
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。 Instant Images - One Click Unsplash Uploads WordPress plugin 4.4.0.1之前版本存在安全漏洞，该漏洞源于插件没有正确验证和去除其Unsplash download w和Unsplash download h参数设置。

AI Predicted 5.4 Difficulty: Moderate EPSS 0.66% · P49

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2021-24334

Vulnerability Information
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Vulnerability Title
Instant Images WordPress Plugin < 4.4.0.1 - Authenticated Stored XSS & XFS
Source: CVE Program / CVE List V5
Vulnerability Description
The Instant Images – One Click Unsplash Uploads WordPress plugin before 4.4.0.1 did not properly validate and sanitise its unsplash_download_w and unsplash_download_h parameter settings (/wp-admin/upload.php?page=instant-images), only validating them client side before saving them, leading to a Stored 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。 Instant Images - One Click Unsplash Uploads WordPress plugin 4.4.0.1之前版本存在安全漏洞，该漏洞源于插件没有正确验证和去除其Unsplash download w和Unsplash download h参数设置。
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 Instant Images – One Click Unsplash Uploads 4.4.0.1 ~ 4.4.0.1 -

II. Public POCs for CVE-2021-24334

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III. Intelligence Information for CVE-2021-24334

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Vendor Advisories for CVE-2021-24334 (1)

Other References for CVE-2021-24334 (1)

Same Patch Batch · Unknown · 2021-06-01 · 10 CVEs total

CVE-2021-24328 WP Login Security and History <= 1.0 - CSRF to Stored Cross-Site Scripting (XSS)
CVE-2021-24329 WP Super Cache < 1.7.3 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24330 Funnel Builder by CartFlows < 1.6.13 - Authenticated Stored XSS via FB Pixel ID and Google
CVE-2021-24331 Smooth Scroll Page Up/Down Buttons < 1.4 - Authenticated Stored XSS
CVE-2021-24333 Content Copy Protection & Prevent Image Save <= 1.3 - CSRF to Stored Cross-Site Scripting
CVE-2021-24335 Car Repair Services < 4.0 - Unauthenticated Reflected XSS & XFS
CVE-2021-24313 WP Prayer < 1.6.2 - Authenticated Stored Cross-Site Scripting (XSS)
CVE-2021-24309 Weekly Schedule < 3.4.3 - Authenticated Stored XSS
CVE-2021-24311 External Media < 1.0.34 - Authenticated Arbitrary File Upload

IV. Related Vulnerabilities

Same vendor: Unknown
Same weakness: CWE-79

V. Comments for CVE-2021-24334

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