CVE Vulnerability

CVE-2021-39357

The Leaky Paywall WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via the ~/class.php file which allowed attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 4.16.5. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

3.5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 6.8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

4.8 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/BigTiger2020/word-press/blob/main/Leaky%20Paywall.md Exploit Third Party Advisory
https://wordfence.com/vulnerability-advisories/#CVE-2021-39357 Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2615195/leaky-paywall/trunk/class.php Patch Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:zeen101:leaky_paywall:*:*:*:*:*:wordpress:*:*
Information

Published : 2021-10-21 08:15

Updated : 2021-10-25 07:56

NVD link : CVE-2021-39357

Mitre link : CVE-2021-39357

Products Affected
No products.
CWE
CWE-79