CVE-2026-93855

SendPress Newsletters <= 1.26.1.20 - Unauthenticated SQL Injection via 'subscriberid' Parameter

Published Oct 29, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Brewlabs
Brewlabs sendpress Newsletters
Wordpress-extensions
Wordpress-extensions sendpress Newsletters
Vendors & Products Brewlabs
Brewlabs sendpress Newsletters
Wordpress-extensions
Wordpress-extensions sendpress Newsletters
Type Values Removed Values Added
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.
Title SendPress Newsletters <= 1.26.1.20 - Unauthenticated SQL Injection via 'subscriberid' Parameter
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Oct 29, 2026, 10:45 AM
Reserved
Sep 18, 2026, 7:05 PM
Status
Deferred
Published
Oct 29, 2026, 4:18 AM
Modified
Oct 29, 2026, 2:56 PM