Plugins · sign-up-sheets · data as of 2026-11-04
Is Sign-up Sheets safe? Known vulnerabilities and latest version
- Latest version
- 2.4.1
- Last updated
- 2026-10-31
- Active installs
- 1,000+
- Known issues on record
- 10
- Unpatched in latest
- 0
- Tested up to WP
- 7.1.4 · PHP 7.2+
Create online sign-up sheets for volunteers, events, and group scheduling. — by Fetch Designs
What to do
- Update to the latest version (2.4.1). Anything older than 2.4.0 has at least one known issue listed below. Dashboard → Updates, or Plugins → “update now”.
- If you cannot update right away, deactivate it until you can.
- Turn on auto-updates for it: Plugins → “Enable auto-updates” on its row.
- If you ran a vulnerable version and something looks off (spam pages, strange admins, redirects), run the free scan.
With WP-CLI: wp plugin get sign-up-sheets --field=version shows what you run; wp plugin update sign-up-sheets updates it.
Check your version
Known vulnerabilities
10 on record, newest first. “Affected” is the version range the source gives; “fixed in” is the version the source names, or (marked *) the first wordpress.org release after the last affected version.
medium 4.3 CVE-2026-92410 · published 2026-09-20
Cross-site request forgery (CSRF) in Sign-up Sheets (older than 2.4.0)
- Affected
- older than 2.4.0
- Fixed in
- 2.4.0
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by CISA ADP
Details from the advisory
The Sign-up Sheets WordPress plugin before 2.4.0 does not properly validate the CSRF nonce that protects its sign-up deletion action, allowing attackers to delete sign-up records via a forged request handled in the session of a logged-in user with the required capability.
critical 9.8 CVE-2025-49393 · published 2025-11-06
PHP object injection in Sign-up Sheets (2.3.2 and older)
- Affected
- 2.3.2 and older
- Fixed in
- 2.3.3
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Deserialization of Untrusted Data vulnerability in Fetch Designs Sign-up Sheets sign-up-sheets allows Object Injection.This issue affects Sign-up Sheets: from n/a through <= 2.3.2.
medium 4.3 CVE-2025-49391 · published 2025-08-20
Cross-site request forgery (CSRF) in Sign-up Sheets (2.3.3 and older)
- Affected
- 2.3.3 and older
- Fixed in
- 2.3.3.1
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Cross-Site Request Forgery (CSRF) vulnerability in Fetch Designs Sign-up Sheets sign-up-sheets allows Cross Site Request Forgery.This issue affects Sign-up Sheets: from n/a through <= 2.3.3.
medium 6.5 CVE-2025-26996 · published 2025-04-15
Remote code execution in Sign-up Sheets (2.3.0.1 and older)
- Affected
- 2.3.0.1 and older
- Fixed in
- 2.3.1
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Improper Control of Generation of Code ('Code Injection') vulnerability in Fetch Designs Sign-up Sheets sign-up-sheets allows Code Injection.This issue affects Sign-up Sheets: from n/a through <= 2.3.0.1.
medium 5.3 CVE-2024-39654 · published 2024-11-01
Missing authorization check in Sign-up Sheets (2.2.12 and older)
- Affected
- 2.2.12 and older
- Fixed in
- 2.2.13
- Access needed (per CVSS)
- No login needed
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Missing Authorization vulnerability in Fetch Designs Sign-up Sheets sign-up-sheets.This issue affects Sign-up Sheets: from n/a through <= 2.2.12.
medium 6.1 CVE-2024-6020 · published 2024-09-04
Reflected cross-site scripting (XSS) in Sign-up Sheets (older than 2.2.13)
- Affected
- older than 2.2.13
- Fixed in
- 2.2.13
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
The Sign-up Sheets WordPress plugin before 2.2.13 does not escape some generated URLs, as well as the $_SERVER['REQUEST_URI'] parameter before outputting them back in attributes, which could lead to Reflected Cross-Site Scripting.
medium 4.3 CVE-2024-31303 · published 2024-04-12
Cross-site request forgery (CSRF) in Sign-up Sheets (2.2.11.1 and older)
- Affected
- 2.2.11.1 and older
- Fixed in
- 2.2.12
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by Patchstack
Details from the advisory
Cross-Site Request Forgery (CSRF) vulnerability in Fetch Designs Sign-up Sheets sign-up-sheets.This issue affects Sign-up Sheets: from n/a through <= 2.2.11.1.
high 8.8 CVE-2023-39165 · published 2023-10-03
Cross-site request forgery (CSRF) in Sign-up Sheets (2.2.8 and older)
- Affected
- 2.2.8 and older
- Fixed in
- 2.2.9
- Access needed (per CVSS)
- No login needed; someone on the site has to click a link or open a page
- Range from
- CVE record (the advisory publisher) · score by NVD
Details from the advisory
Cross-Site Request Forgery (CSRF) vulnerability in Fetch Designs Sign-up Sheets plugin <= 2.2.8 versions.
medium 4.8 CVE-2021-24440 · published 2021-07-12
Stored cross-site scripting (XSS) in Sign-up Sheets (older than 1.0.14)
- Affected
- older than 1.0.14
- Fixed in
- 1.0.14
- Access needed (per CVSS)
- Needs an admin-level account; someone on the site has to click a link or open a page
- Range from
- NVD analysis · score by NVD
Details from the advisory
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 privilege users to add JavaScript in them, leading to a Stored Cross-Site Scripting issue. The payloads will be triggered when viewing the 'All Sheets' page in the admin dashboard
high 8.0 CVE-2021-24441 · published 2021-07-12
CSV injection in Sign-up Sheets (older than 1.0.14)
- Affected
- older than 1.0.14
- Fixed in
- 1.0.14
- Access needed (per CVSS)
- Needs a low-level account (e.g. subscriber); someone on the site has to click a link or open a page
- Range from
- NVD analysis · score by NVD
Details from the advisory
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 could lead to a CSV injection issue
Recent activity
- 2026-10-31 — latest release on wordpress.org (2.4.1).
- 2026-09-20 — Cross-site request forgery (CSRF) disclosed (CVE-2026-92410), fixed in 2.4.0.
- 2025-11-06 — PHP object injection disclosed (CVE-2025-49393), fixed in 2.3.3.
- 2025-08-20 — Cross-site request forgery (CSRF) disclosed (CVE-2025-49391), fixed in 2.3.3.1.
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Browse vulnerabilities
Types found in this plugin: Cross-site request forgery (CSRF) (4) · Cross-site scripting (XSS) (2) · PHP object injection (1) · Remote code execution (1) · Missing authorization (1)
Where this data comes from
- Version, last update, installs: wordpress.org/plugins/sign-up-sheets (Plugins API), fetched 2026-11-04.
- Vulnerabilities: NIST National Vulnerability Database (NVD), checked 2026-11-04. This product uses data from the NVD API but is not endorsed or certified by the NVD.
- Each record links to its CVE page and to the original advisory (Wordfence, Patchstack or WPScan) where there is one. We only list a CVE here when its references or its advisory name this exact plugin, so a few real issues may be missing; none should be about a different plugin. Spot an error? Email Daniel.
Badge for your site or docs (states facts with a date, not a verdict):
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