WordPress Plugin Vulnerabilities

User Meta < 2.4.3 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not sanitise and escape the Form Name, as well as Shared Field Labels before outputting them in the admin dashboard when editing a form, which could allow high privilege users to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

Proof of Concept

An an admin
- Create/edit a form and put the following payload in the Form name field: "><script>alert(/XSS-form-name/)</script>
- Edit a Shared Field and put the following payload in the Field Label: "><script>alert(/XSS-field-label/)</script>

Then edit the form again to trigger the XSS via Form Name, click on the shared field to trigger XSS via Field Label

Affects Plugins

Fixed in 2.4.3

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Niraj Mahajan
Submitter
Niraj Mahajan
Submitter twitter
Verified
Yes

Timeline

Publicly Published
2022-05-09 (about 2 years ago)
Added
2022-05-09 (about 2 years ago)
Last Updated
2022-05-10 (about 2 years ago)

Other