CVE-2021-24134

Constant Contact Forms < 1.8.8 - Multiple Authenticated Stored XSS

Severity Score

4.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Unvalidated input and lack of output encoding in the Constant Contact Forms WordPress plugin, versions before 1.8.8, lead to multiple Stored Cross-Site Scripting vulnerabilities, which allowed high-privileged user (Editor+) to inject arbitrary JavaScript code or HTML in posts where the malicious form is embed.

Una entrada no comprobada y una falta de codificación de salida en el plugin de WordPress Constant Contact Forms, versiones anteriores a 1.8.8, conllevan a múltiples vulnerabilidades de tipo Cross-Site Scripting Almacenado, que permitían a un usuario muy privilegiado (Editor+) inyectar código JavaScript o HTML arbitrario en publicaciones donde la forma maliciosa está insertada

*Credits: Nguyen Anh Tien - SunCSR (Sun* Cyber Security Research)

CVSS Scores

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

Low

Privileges Required

High

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

2020-09-06 CVE Published
2021-01-14 CVE Reserved
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 (1)

URL	Tag	Source

URL	Date	SRC
https://wpscan.com/vulnerability/8f3cca92-d072-4806-9142-7f1a987f840b	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
Constantcontact Search vendor "Constantcontact"		Constant Contact Forms Search vendor "Constantcontact" for product "Constant Contact Forms"				< 1.8.8 Search vendor "Constantcontact" for product "Constant Contact Forms" and version " < 1.8.8"		wordpress		Affected