What is CVE-2026-93855?

CVE-2026-93855 is a high-severity vulnerability in Brewlabs Sendpress Newsletters, classified under SQL Injection. CVSS score: 7.5/10. Published 2026-10-29.

How severe is CVE-2026-93855?

High severity. CVSS v3 base score is 7.5 out of 10.

SQL Injection in Brewlabs Sendpress Newsletters

CVE-2026-93855

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.

Vulnerability class: SQL Injection

Published 2026-10-29 · last modified 2026-10-29.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.3th percentile), scored 2026-10-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Brewlabs Sendpress Newsletters

Weakness classification (CWE)

CWE-89 — SQL Injection

References

Frequently asked questions

What is CVE-2026-93855?: CVE-2026-93855 is a high-severity vulnerability in Brewlabs Sendpress Newsletters, classified under SQL Injection. CVSS score: 7.5/10. Published 2026-10-29.
How severe is CVE-2026-93855?: High severity. CVSS v3 base score is 7.5 out of 10.