Critical 9.8Published Oct 24, 2026

CVE-2026-94075WordPress Newsletters plugin <= 4.18.1 - PHP Object Injection vulnerability

Updated under an hour ago (Oct 27, 2026, 12:00 PM ET)

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It affects Tribulant Software Newsletters. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.45%, higher than 39% of scored CVEs.

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Every CVE for Tribulant Software Newsletters

Exploited in the last 30 days

Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through 4.18.1.

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.45% (percentile 39)
Assigned by: Patchstack
NVD analysis: Deferred
Record last updated: Oct 24, 2026
First seen by InfoSec Signals: Oct 24, 2026

Affected products

Affected products

Tribulant Software Newsletters tribulant_software:newsletters (from the name)	through 4.18.1; fixed at 4.18.2	CNA record

References

References

https://patchstack.com/database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-18-1-php-object-injection-vulnerability?_s_id=cve	vdb-entry

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.