The Countdown Timer for WordPress Block Editor WordPress plugin through 1.0.5 does not validate and escape some of its block options before outputting them back in a page/post where the block is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.
| Software | From | Fixed in |
|---|---|---|
| flickdevs / countdown_timer_for_wordpress_block_editor | - | 1.0.5.x |