AJAX Action Endpoint Vulnerability in PageLayer Plugin for WordPress
CVE-2020-35947

7.4HIGH

Key Information:

Vendor

Wordpress
Status
Pagelayer
Vendor
CVE Published:
1 January 2021

What is CVE-2020-35947?

A significant vulnerability was found in the PageLayer plugin for WordPress, preceding version 1.1.2. The flaw stems from inadequate permission checks on nearly all AJAX action endpoints, enabling any authenticated user to perform actions that should be restricted. This issue arises from the use of nonces as a form of authorization; however, a nonce was exposed on a publicly accessible page. One of the most concerning consequences of this vulnerability is the pagelayer_save_content function, which permits unauthorized modifications to web pages. Consequently, this may lead to Cross-Site Scripting (XSS) attacks, increasing the risk for websites utilizing this plugin.

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References

https://www.wordfence.com/blog/2020/05/high-severity-vuln...
x_refsource_MISC
https://wpscan.com/vulnerability/10239
x_refsource_MISC

CVSS V3.1

Score:
7.4
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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