CVE-2025-67911
CRITICAL
2026-01-08
[email protected]
9.8
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 08, 2026 - 10:15 nvd
CRITICAL 9.8
Tags
Description
Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11.
Analysis
Newsletters WordPress plugin by Tribulant (through 4.11) is vulnerable to PHP object injection through deserialization of untrusted data, potentially leading to RCE via POP chains.
Technical Context
The plugin deserializes untrusted input (CWE-502), allowing arbitrary PHP object injection. With suitable POP chains in WordPress or other plugins, this achieves remote code execution.
Affected Products
Newsletters by Tribulant through 4.11
Remediation
Update the plugin. Monitor for deserialization exploitation indicators.
Priority Score
49
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: 0
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External POC / Exploit Code
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Destination URL
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