CVE-2023-7064: Shortcodes and extra features for Phlox theme <= 2.17.5 - Authenticated (Subscriber+) PHP Object Injection via auxin_template_control_importer

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-05-02 · updated 2026-06-17
Weakness: CWE-502

Description

The Shortcodes and extra features for Phlox theme plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.17.5 via deserialization of untrusted input from the vulnerable 'id' parameter in the 'auxin_template_control_importer' function. This makes it possible for authenticated attackers able to upload a separate PHAR payload as an image file to inject a PHP Object, though the action itself is available to subscribers. No POP chain is present in the vulnerable plugin. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.

Affected products

averta Shortcodes and extra features for Phlox theme: before 2.17.6 — fixed in 2.17.6

How to fix

Upgrade to a fixed version: averta Shortcodes and extra features for Phlox theme 2.17.6. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2023-7064 or the next vulnerability affects your stack