CVE-2025-67911: Deserialization of Untrusted Data in Tribulant Software Newsletters
Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11.
AI Analysis
Technical Summary
This vulnerability in Tribulant Software Newsletters (<= 4.11) arises from unsafe deserialization of untrusted data, enabling object injection attacks. An attacker can exploit this remotely without authentication or user interaction, potentially executing arbitrary code or causing denial of service. The CVSS 3.1 base score is 9.8, reflecting critical impact on confidentiality, integrity, and availability. No known exploits in the wild or vendor patches have been reported yet.
Potential Impact
Successful exploitation can lead to full system compromise, including arbitrary code execution, data breach, and service disruption. The vulnerability affects all installations of Tribulant Software Newsletters up to version 4.11. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling or restricting access to the affected plugin to mitigate risk.
CVE-2025-67911: Deserialization of Untrusted Data in Tribulant Software Newsletters
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Tribulant Software Newsletters (<= 4.11) arises from unsafe deserialization of untrusted data, enabling object injection attacks. An attacker can exploit this remotely without authentication or user interaction, potentially executing arbitrary code or causing denial of service. The CVSS 3.1 base score is 9.8, reflecting critical impact on confidentiality, integrity, and availability. No known exploits in the wild or vendor patches have been reported yet.
Potential Impact
Successful exploitation can lead to full system compromise, including arbitrary code execution, data breach, and service disruption. The vulnerability affects all installations of Tribulant Software Newsletters up to version 4.11. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider disabling or restricting access to the affected plugin to mitigate risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2025-12-15T09:59:40.761Z
- Cvss Version
- null
- State
- PUBLISHED
Threat ID: 695f7a59c901b06321d0bba6
Added to database: 1/8/2026, 9:35:21 AM
Last enriched: 4/29/2026, 4:47:50 AM
Last updated: 5/10/2026, 10:24:50 AM
Views: 109
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.