Description
The Newsletter WordPress plugin before 8.8.5 does not validate and escape some of its Widget options before outputting them back in a page/post where the block is embed, 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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Newsletter | < 8.8.5 | 8.8.5 |
References
- https://wpscan.com/vulnerability/2d96f018-510d-40ab-9e73-76fa44784813/ exploit vdb-entry technical-description