CVE-2026-25445
Deserialization Object Injection in WishList Member X Allows Exploitation
Publication date: 2026-03-19
Last updated on: 2026-04-28
Assigner: Patchstack
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| wishlist_member_x | wishlist_member_x | From 3.0.0 (inc) to 3.29.0 (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-2026-25445 is a PHP Object Injection vulnerability found in the WordPress WishList Member X Plugin versions up to and including 3.29.0. This vulnerability allows attackers to inject malicious objects into the application by exploiting deserialization of untrusted data.
Exploiting this flaw can enable attackers to perform various malicious actions such as code injection, SQL injection, path traversal, and denial of service attacks, provided they can use a suitable Property Oriented Programming (POP) chain.
The vulnerability requires only subscriber-level privileges to exploit and is classified under the OWASP Top 10 category A3: Injection.
How can this vulnerability impact me? :
This vulnerability can have severe impacts including unauthorized code execution, data breaches through SQL injection, unauthorized file access via path traversal, and service disruption through denial of service attacks.
Because the vulnerability has a high CVSS score of 8.8, it is considered highly dangerous and likely to be exploited in widespread attacks targeting many websites.
If exploited, it can compromise the confidentiality, integrity, and availability of your website and its 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?
The vulnerability affects WishList Member X plugin versions up to and including 3.29.0 and allows PHP Object Injection, which can lead to severe impacts such as code injection, SQL injection, path traversal, and denial of service.
Since no official patch has been released as of March 18, 2026, immediate mitigation steps include:
- Update the WishList Member X plugin to a version newer than 3.29.0 as soon as an official patch becomes available.
- Apply the mitigation rule provided by Patchstack to block attacks exploiting this vulnerability until an official patch is released.
- Seek assistance from your hosting provider or web developer if you are unable to update the plugin immediately.