CVE-2026-78535: CWE-502 Deserialization of Untrusted Data in ThemeRex Photolia
Description
CVE-2026-78535 is a critical vulnerability in ThemeRex Photolia versions up to 1.0.3 that allows unauthenticated PHP Object Injection due to deserialization of untrusted data. This flaw can lead to full system compromise without requiring user interaction or privileges.
CVSS v3.1
Score 9.8critical
Affected software
ThemeRex
Photolia
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-78535) affects ThemeRex Photolia versions up to 1.0.3 and involves unsafe deserialization of untrusted data, categorized as CWE-502. An attacker can exploit this flaw without authentication to perform PHP Object Injection, potentially leading to remote code execution and complete compromise of the affected system. The CVSS 3.1 base score is 9.8, indicating critical severity with network attack vector, no required privileges or user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation allows an unauthenticated attacker to execute arbitrary code on the server running Photolia, leading to full system compromise including data theft, modification, or service disruption.
Mitigation Recommendations
No patch or official fix information is currently available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, restrict access to the affected application and monitor for suspicious activity related to deserialization.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-08-24T17:28:20.061Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aca96c32cdf04f6564a6059
Added to database: 10/10/2026, 19:49:23 UTC
Last enriched: 10/10/2026, 20:03:14 UTC
Last updated: 10/10/2026, 20:08:12 UTC
Views: 4
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