Is sign-up-sheets (WordPress plugin) vulnerable?

WordPress sign-up-sheets has 3 known advisories in the phpwarden feed. Feed 2026.10.29.1, updated 2026-10-28.

3advisories

0critical

0on CISA KEV

0no fix recorded

CVE	Title	Severity	CVSS	Affected	Fixed in
CVE-2021-24441	The Sign-up Sheets WordPress plugin before 1.0.14 does not not sanitise or validate the Sheet title when generating the CSV to export, which	high	8.0	`<1.0.14`	`1.0.14`
CVE-2021-24440	The Sign-up Sheets WordPress plugin before 1.0.14 did not sanitise or escape some of its fields when creating a new sheet, allowing high pri	medium	4.8	`<1.0.14`	`1.0.14`
CVE-2024-6020	The Sign-up Sheets WordPress plugin before 2.2.13 does not escape some generated URLs, as well as the $_SERVER['REQUEST_URI'] parameter befo	medium	6.1	`<2.2.13`	`2.2.13`

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.

# one-time install
pip install phpwarden

# then
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.