WordPress Plugin Vulnerabilities

We’re Open! < 1.42 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Proof of Concept

Put the following payload in the Settings > We're Open > Separators & Text > Closed Text: "><svg/onload=alert(/XSSTEST/)>

Save the settings, the XSS will be triggered on pages/posts where the Closed Text is displayed, for example when [open] is embed is there is at least one closed day

Affects Plugins

Fixed in 1.42

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Asif Nawaz Minhas
Submitter
Asif Nawaz Minhas
Submitter website
Verified
Yes

Timeline

Publicly Published
2022-09-20 (about 1 years ago)
Added
2022-09-20 (about 1 years ago)
Last Updated
2022-09-20 (about 1 years ago)

Other