CVE-2026-22453
Deserialization Object Injection in ThemeREX Pets Club
Publication date: 2026-03-05
Last updated on: 2026-03-09
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| themerex | pets_club | to 2.3 (inc) |
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?
CVE-2026-22453 is a high-priority PHP Object Injection vulnerability affecting the WordPress Pets Club Theme versions up to and including 2.3.
This vulnerability allows unauthenticated attackers to perform Object Injection, which can lead to code injection, SQL injection, path traversal, denial of service, and other attacks if a suitable PHP Object Injection Property Oriented Programming (POP) chain is present.
It is classified under OWASP Top 10 A3: Injection and has a CVSS severity score of 9.8, indicating it is highly dangerous and likely to be exploited.
How can this vulnerability impact me? :
This vulnerability can have severe impacts including unauthorized code execution, which may allow attackers to take control of the affected system.
It can also lead to SQL injection, enabling attackers to manipulate or steal data from the database.
Other potential impacts include path traversal attacks, denial of service conditions, and other malicious activities that compromise the security and availability of the website.
Since the vulnerability can be exploited by unauthenticated attackers, it poses a significant risk to website integrity and user data.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
This vulnerability currently has no official patch available. However, Patchstack has issued a mitigation rule that can block attacks targeting this flaw.
Users are strongly advised to apply these mitigation rules immediately to protect their websites until an official patch is released, tested, and safely applied.