Description
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.
Published: 2021-10-21
Score: 5.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

Vendor Solution

Uninstall WordPress plugin from site.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2021-25718 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.
History

Fri, 14 Feb 2025 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Zeen101 Leaky Paywall
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2025-02-14T17:55:12.748Z

Reserved: 2021-08-20T00:00:00.000Z

Link: CVE-2021-39357

cve-icon Vulnrichment

Updated: 2024-08-04T02:06:42.503Z

cve-icon NVD

Status : Modified

Published: 2021-10-21T20:15:08.260

Modified: 2024-11-21T06:19:23.977

Link: CVE-2021-39357

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses