CVE-2026-81797: CWE-502 Deserialization of Untrusted Data in ThemeRex Buzz Stone | Magazine & Viral Blog WordPress Theme
Description
CVE-2026-81797 is a critical vulnerability in the ThemeRex Buzz Stone | Magazine & Viral Blog WordPress Theme versions up to 1.0.2. It involves unauthenticated PHP object injection due to deserialization of untrusted data, which can lead to full compromise of confidentiality, integrity, and availability of the affected system.
CVSS v3.1
Score 9.8critical
Affected software
ThemeRex
Buzz Stone | Magazine & Viral Blog WordPress Theme
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-502) allows unauthenticated attackers to perform PHP object injection through deserialization of untrusted data in the Buzz Stone WordPress theme up to version 1.0.2. The flaw enables remote attackers to execute arbitrary code or cause denial of service without any privileges or user interaction. The CVSS 3.1 score of 9.8 reflects the high impact and ease of exploitation over the network without authentication.
Potential Impact
Successful exploitation can lead to complete system compromise including remote code execution, data disclosure, and service disruption. The vulnerability affects confidentiality, integrity, and availability with no required privileges or user interaction.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict access to the vulnerable theme and monitor for suspicious activity.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-08-27T12:24:38.075Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aca96c32cdf04f6564a605a
Added to database: 10/10/2026, 19:49:23 UTC
Last enriched: 10/10/2026, 20:03:12 UTC
Last updated: 10/10/2026, 20:08:11 UTC
Views: 4
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