Is wp-time-capsule (WordPress plugin) vulnerable?

WordPress wp-time-capsule has 2 known advisories in the phpwarden feed. Feed 2026.10.29.4, updated 2026-10-29.

2advisories
2critical
0on CISA KEV
0no fix recorded
CVETitleSeverityCVSSAffectedFixed in
CVE-2024-8856The Backup and Staging by WP Time Capsule plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation icritical9.8<1.22.221.22.22
CVE-2020-8771The Time Capsule plugin before 1.21.16 for WordPress has an authentication bypass. Any request containing IWP_JSON_PREFIX causes the client critical9.8<1.21.161.21.16

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# PHP projects (recommended)
composer require --dev phpwarden/phpwarden
# then
vendor/bin/phpwarden wordpress /var/www/html

# or, without Composer
pipx install phpwarden   &&   phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked
A version is vulnerable when it falls inside an affected range and below the fixed version. phpwarden applies these ranges to the exact versions in your lockfile or install, so you only see what applies to you.