Event Timeline <= 1.1.6 - Admin+ Stored Cross-Site Scripting

2022-07-1100:00:00

Fayçal CHENA

133

admin+ cross-site scripting

stored

event timeline

payload

update trigger

EPSS

0.001

Percentile

24.8%

JSON

The plugin does not sanitize and escape Timeline Text, which could allow high-privileged users such as admin to perform Cross-Site Scripting attacks even when unfiltered_html is disallowed

Create/edit a Timeline, put the following payload in the "Text" field at the bottom: <script>alert(/XSS/)</script>

Click save (below the Text field, not the button on top of the page), then click Update

The XSS will be triggered in post/page where the Timeline is embed

EPSS

0.001

Percentile

24.8%

JSON

Related for WPEX-ID:2CE2A387-ACC8-482A-9452-A4D9ACB187FD