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CVE-2026-97074: WordPress Newsletters, Email Marketing, SMS and Popups by Omnisend plugin <= 1.9.0 - Insecure Direct Object References (IDOR) vulnerability

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-30 · updated 2026-09-30
• Weakness: CWE-639

Description

Subscriber Insecure Direct Object References (IDOR) in Newsletters, Email Marketing, SMS and Popups by Omnisend <= 1.9.0 versions.

Affected products

• Omnisend Newsletters, Email Marketing, SMS and Popups by Omnisend: through 1.9.0

References

• https://patchstack.com/database/wordpress/plugin/omnisend/vulnerability/wordpress-newsletters-email-marketing-sms-and-popups-by-omnisend-plugin-1-9-0-insecure-direct-object-references-idor-vulnerability?_s_id=cve

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