CVE-2021-24768

WP RSS Aggregator < 4.19.2 - Admin+ Stored Cross-Site Scripting

Severity Score

4.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The WP RSS Aggregator WordPress plugin before 4.19.2 does not properly sanitise and escape the URL to Blacklist field, allowing malicious HTML to be inserted by high privilege users even when the unfiltered_html capability is disallowed, which could lead to Cross-Site Scripting issues.

El plugin WP RSS Aggregator de WordPress versiones anteriores a 4.19.2, no sanea ni escapa del campo URL to Blacklist, permitiendo a usuarios con altos privilegios insertar HTML malicioso incluso cuando la capacidad unfiltered_html no está permitida, que podría conllevar a problemas de tipo Cross-Site Scripting

*Credits: Huy Nguyen

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

Required

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
2021-11-01 CVE Published
2023-06-22 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/vulnerability/3673e13f-7ce6-4d72-b179-ae4bab55514c	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
Wprssaggregator Search vendor "Wprssaggregator"		Wp Rss Aggregator Search vendor "Wprssaggregator" for product "Wp Rss Aggregator"				< 4.19.2 Search vendor "Wprssaggregator" for product "Wp Rss Aggregator" and version " < 4.19.2"		wordpress		Affected