CVE-2026-75908: medium-severity vulnerability in contrid Newsletters
Newsletters <= 4.17 - Missing Authorization to Authenticated (Author+) Arbitrary Modification via 'newsletters_mailinglistsroles' POST Parameter
Published
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.3epss 0.4%
exploitation probability
0.4%top 69% of all CVEs
observed exploitation
nono source reports it
The Newsletters plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.17. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with author-level access and above, to send arbitrary newsletter emails to users of any WordPress role, including administrators, by forging POST fields during a normal post submission. This allows an attacker-supplied role slug via the newsletters_mailinglistsroles POST field to be passed directly to get_users(), enabling unauthorized mass-mailing and potential phishing against privileged site users through the site's own outbound email channel.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
contrid · NewslettersRelated CVEs — contrid Newsletters
In the same product, most dangerous first.
CVE-2026-3018HIGHNewsletters <= 4.13 - Unauthenticated SQL Injection via wpmlsubscriber_id ParameterEPSS 1.5%CVE-2025-4857HIGHNewsletters <= 4.9.9.9 - Authenticated (Administrator+) Local File InclusionEPSS 0.8%CVE-2024-8247HIGHNewsletters <= 4.9.9.2 - Authenticated Privilege EscalationEPSS 0.5%CVE-2024-7411MEDIUMNewsletters <= 4.9.9 - Unauthenticated Full Path DisclosureEPSS 0.4%CVE-2025-3107MEDIUMNewsletters <= 4.9.9.8 - Authenticated (Contributor+) SQL Injection orderby ParameterEPSS 0.4%CVE-2024-10181MEDIUMNewsletters <= 4.9.9.4 - Authenticated (Contributor+) Stored Cross-Site Scripting via newsletters_video ShortcodeEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.17/includes/checkinit.php#L63https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.17/wp-mailinglist.php#L3897https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.17/wp-mailinglist.php#L3957https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.17/wp-mailinglist.php#L4114https://plugins.trac.wordpress.org/changeset?reponame=&old=3663788%40newsletters-lite&new=3663788%40newsletters-litehttps://www.wordfence.com/threat-intel/vulnerabilities/id/1d3eddce-1b41-4a33-8d57-bd594cf06a06?source=cve