Deserialization Vulnerability in Little Birdies by ThemeREX Group
CVE-2026-112859

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Little Birdies
Vendor
CVE Published:
23 October 2026

What is CVE-2026-112859?

The vulnerability in the Little Birdies theme by ThemeREX Group allows for deserialization of untrusted data, leading to potential object injection. This can enable attackers to execute malicious code in a vulnerable installation, affecting the integrity and security of the website. Users of Little Birdies from version n/a through 1.3.16 are particularly at risk and should take immediate measures to secure their systems.

Affected Version(s)

Little Birdies 0 <= 1.3.16

References

https://patchstack.com/database/wordpress/theme/little-bi...
vdb-entry

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

João Pedro S Alcântara (Kinorth) | Patchstack Bug Bounty Program
.