CVE-2026-54857

Unauthenticated PHP Object Injection in Quirky <= 1.23 versions.

Risk score: 74/100
CVSS: 9.8 v3.1
Published: 29 Oct 2026

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What to know

What it is: A critical vulnerability (CVSS 9.8) allows unauthenticated PHP Object Injection in Quirky versions up to 1.23, enabling attackers to potentially gain high privileges, manipulate data, and achieve arbitrary code execution.
Affected: {'products': ['Quirky'], 'packages': [], 'versions': ['<= 1.23']}
Fix: Check the linked advisory for a fix; upgrade to a version above 1.23.
Exploitation: No known exploitation

Why it is Amber

CVSS 9.8 critical
Remotely exploitable without logging in
On your watchlist: php

References

https://patchstack.com/database/wordpress/theme/quirky/vulnerability/wordpress-quirky-theme-1-23-php-object-injection-vulnerability?_s_id=cve

Original description

Unauthenticated PHP Object Injection in Quirky <= 1.23 versions.

Last activity 29 Oct 2026. Patch Forecast updates every hour.