CVE-2026-25360
Deserialization Object Injection in Vex < 1.2.9 Allows Code Execution
Publication date: 2026-03-25
Last updated on: 2026-04-23
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| rascals | vex | to 1.2.9 (exc) |
| patchstack | vex | to 1.2.9 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-502 | The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Deserialization of Untrusted Data issue in the rascals Vex software. It allows Object Injection, meaning that an attacker can manipulate serialized data to inject malicious objects when the software deserializes the data. This can lead to unexpected behavior or exploitation.
The affected versions of Vex are all versions before 1.2.9.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
CVE-2026-25360 is a critical PHP Object Injection vulnerability that can lead to severe attacks such as remote code execution, SQL injection, and denial of service. Such attacks can compromise the confidentiality, integrity, and availability of data handled by affected systems.
While the provided information does not explicitly mention compliance with standards like GDPR or HIPAA, exploitation of this vulnerability could result in unauthorized access or data breaches, which would negatively impact compliance with these regulations.
Organizations using the vulnerable Vex Theme should promptly apply the patch to mitigate risks that could lead to violations of data protection and privacy requirements under common standards and regulations.
How can this vulnerability be detected on my network or system? Can you suggest some commands?
The provided resources do not include specific commands or methods to detect the CVE-2026-25360 vulnerability on your network or system.
What immediate steps should I take to mitigate this vulnerability?
To mitigate the CVE-2026-25360 vulnerability, you should immediately update the WordPress Vex Theme to version 1.2.9 or later, as this version contains the patch that fixes the PHP Object Injection issue.
Until you can apply the update, you can use mitigation rules provided by Patchstack that block attacks exploiting this vulnerability, offering rapid protection.
It is strongly advised to apply these mitigations promptly due to the critical risk level (CVSS score 8.8) and the expected widespread exploitation.
How can this vulnerability impact me? :
Exploitation of this vulnerability can allow an attacker to inject malicious objects into the application, potentially leading to arbitrary code execution, data manipulation, or other unauthorized actions depending on how the application processes the injected objects.