Is CVE-2026-112853 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-112853 being exploited in the wild.

How severe is CVE-2026-112853?

Critical severity, with a CVSS score of 9.8, published 23 October 2026.

Which products and versions are affected?

Axiomthemes Hallelujah through 1.1.1.

How is CVE-2026-112853 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-112853?

Check whether you run Axiomthemes Hallelujah at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-112853: axiomthemes Hallelujah object injection via deserialization

CVE-2026-112853 · Severity: critical · CVSS 9.8 · Published 2026-10-23

The Hallelujah WordPress theme contains a PHP object injection vulnerability in how it deserializes untrusted data, allowing unauthenticated attackers to execute arbitrary code on affected websites. This vulnerability can lead to complete server compromise, data theft, and malware installation without requiring any user interaction or authentication.

Vendors: Axiomthemes.

Quick answers

Is CVE-2026-112853 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-112853 being exploited in the wild.
How severe is CVE-2026-112853?: Critical severity, with a CVSS score of 9.8, published 23 October 2026.
Which products and versions are affected?: Axiomthemes Hallelujah through 1.1.1.
Is there a fix for CVE-2026-112853?: No fixed version is recorded yet. Patchstack has issued a mitigation rule to block exploit attempts against this vulnerability until an official patch is released. Enable this protection via Patchstack or similar WordPress security services to prevent attacks while waiting for the vendor to release an official patch. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-112853 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-112853?: Check whether you run Axiomthemes Hallelujah at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Patchstack has issued a mitigation rule to block exploit attempts against this vulnerability until an official patch is released. Enable this protection via Patchstack or similar WordPress security services to prevent attacks while waiting for the vendor to release an official patch.

Technical details

The vulnerability is a PHP object injection flaw (CWE-502: Deserialization of Untrusted Data) in the Hallelujah theme affecting versions through 1.1.1. An unauthenticated remote attacker can exploit this via the network to inject and instantiate arbitrary PHP objects, leading to remote code execution on the server. No official patch is currently available.

Affected products

axiomthemes Hallelujah through 1.1.1

Timeline

2026-10-23: disclosed: Published on NVD and Patchstack
2026-02-12: other: Originally reported to Patchstack by João Pedro S Alcântara (Kinorth)

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.