PlanSo Forms <= 2.6.4 - Authenticated (Admin+) Stored Cross-Site Scripting

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2021-24516
CVSS 5.5 (Medium)
Publicly Published September 15, 2021
Last Updated February 3, 2023
Researcher Felipe Restrepo Rodriguez


The PlanSo Forms WordPress plugin through 2.6.4 does not escape the title of its Form before outputting it in attributes, allowing high privilege users such as admin to set XSS payload in it, even when the unfiltered_html is disallowed, leading to an Authenticated Stored Cross-Site Scripting issue.



1 affected software package

Software Type Plugin
Software Slug planso-forms (view on
Patched? No
Remediation No known patch available. Please review the vulnerability's details in depth and employ mitigations based on your organization's risk tolerance. It may be best to uninstall the affected software and find a replacement.
Affected Version
  • <= 2.6.4

All the threat data shared in this database is powered by Wordfence Intelligence Enterprise.
Interested in integrating this data into your platform or network?
Contact us now to discuss API access to our Wordfence Intelligence Enterprise Data Feeds.

Inquire Now

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.