CVE-2021-24334

Instant Images WordPress Plugin < 4.4.0.1 - Authenticated Stored XSS & XFS

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

El plugin de WordPress Instant Images - One Click Unsplash Uploads versiones anteriores a 4.4.0.1, no comprobaba ni saneababa correctamente la configuración de los parámetros unsplash_download_w y unsplash_download_h (/wp-admin/upload.php?page=instant-images), solo los comprobaba en el lado del cliente antes de guardarlos, conllevando a un problema de tipo Cross-Site Scripting almacenados

*Credits: m0ze

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-14 CVE Reserved
2021-05-17 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (2)

URL	Tag	Source
https://m0ze.ru/vulnerability/%5B2021-04-22%5D-%5BWordPress%5D-%5BCWE-79%5D-Instant-Images-WordPress-Plugin-v4.4.0.txt	X_refsource_misc

URL	Date	SRC
https://wpscan.com/vulnerability/ae79189a-6b63-4110-9567-cd7c97d71e4f	2024-08-03

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Connekthq Search vendor "Connekthq"		Instant Images - One Click Unsplash Uploads Search vendor "Connekthq" for product "Instant Images - One Click Unsplash Uploads"				< 4.4.0.1 Search vendor "Connekthq" for product "Instant Images - One Click Unsplash Uploads" and version " < 4.4.0.1"		wordpress		Affected