Executive Summary

[{'type': 'paragraph', 'content': 'CVE-2026-22345 is a PHP Object Injection vulnerability found in the WordPress plugin "Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery" versions up to and including 1.6.0.'}, {'type': 'paragraph', 'content': 'This vulnerability allows an attacker with contributor or developer privileges to inject malicious PHP objects through deserialization of untrusted data, potentially leading to code injection, SQL injection, path traversal, denial of service, and other attacks if a suitable Property Oriented Programming (POP) chain is present.'}, {'type': 'paragraph', 'content': 'It is classified under the OWASP Top 10 category A3: Injection and has a CVSS score of 8.8, indicating a high likelihood of exploitation and a moderately dangerous risk.'}] [1]

Useful 0 Not Useful 0

Impact Analysis

Exploitation of this vulnerability can lead to severe impacts including remote code execution, unauthorized database access through SQL injection, file system access via path traversal, denial of service attacks, and other malicious activities.

Since the vulnerability requires contributor or developer privileges to exploit, an attacker with such access can leverage it to escalate their privileges or compromise the affected WordPress site.

No official patch is currently available, but mitigation rules from Patchstack can help block attacks targeting this flaw until a patch is released.

Useful 0 Not Useful 0

Compliance Impact

I don't know

Useful 0 Not Useful 0

Detection Guidance

[{'type': 'paragraph', 'content': 'There is no specific detection command or method provided for this vulnerability in the available resources.'}, {'type': 'paragraph', 'content': 'However, since the vulnerability involves PHP Object Injection in the WordPress plugin "Image Gallery – Lightbox Gallery, Responsive Photo Gallery, Masonry Gallery" up to version 1.6.0, monitoring for unusual PHP object deserialization or suspicious requests targeting this plugin could help in detection.'}, {'type': 'paragraph', 'content': "Patchstack has issued a mitigation rule that can block attacks targeting this flaw, which implies that using Patchstack's security tools may help detect or prevent exploitation attempts."}] [1]

Useful 0 Not Useful 0

Mitigation Strategies

Since no official patch is currently available for this vulnerability, immediate mitigation involves applying the Patchstack mitigation rule designed to block attacks targeting this flaw.

Users are advised to implement Patchstack’s automated vulnerability mitigation and continuous security intelligence to protect their WordPress sites.

• Apply Patchstack’s mitigation rule immediately.
• Monitor and restrict contributor or developer privileges to reduce exploitation risk.
• Keep the plugin updated and watch for official patches or updates.

Useful 0 Not Useful 0