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 version 1.42
References
Classification
Miscellaneous
Original Researcher
Asif Nawaz Minhas
Submitter
Asif Nawaz Minhas
Submitter website
Verified
Yes
Timeline
Publicly Published
2022-09-20 (about 8 months ago)
Added
2022-09-20 (about 8 months ago)
Last Updated
2022-09-20 (about 8 months ago)