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CriticalVulnerabilityCVE-2026-112854updated 25 Oct 2026, 17:05 UTC

Holistic Center WordPress theme can be abused by attackers via untrusted data

A flaw in this WordPress theme lets attackers send specially crafted data that the website then trusts and processes, which can let them take over parts of the site. Think of it as a lock that accepts a forged key.

Official, 2 sources
SeverityCriticalCVSS 9.8 of 10
Being exploited?UnclearNo reports either way yet
Fix available?UnclearNo fixed version published in the sources yet
How sure is this?Official, 2 sourcesBacked by an official source

How the attack works simplified

  1. 1Attacker sends crafted dataMalicious serialized input sent to the site
  2. 2Theme unserializes inputUntrusted data is processed without checks
  3. 3Malicious object executesInjected object runs with site privileges
  4. ResultAttacker gains control of the website

What happened

The holistic-center theme by axiomthemes contains an insecure deserialization flaw (PHP object injection), where untrusted input is unserialized and can lead to attacker-controlled object behavior.

Why it is dangerous: Successful exploitation of this critical issue (CVSS 9.8) could let an unauthenticated attacker compromise the affected website, including its data and content. Any site running the theme is at risk.

Are you affected?

You are affected if your website runs the Holistic Center theme (holistic-center by axiomthemes) at version 1.2.6 or earlier.

Holistic Center (holistic-center) by axiomthemes, all versions through 1.2.6

What to do

  1. Check whether the Holistic Center theme is installed and note its version
  2. Update the theme to a version newer than 1.2.6 as soon as a fixed release is available from the vendor
  3. If no fix is available yet, deactivate the theme and switch to another theme, or restrict access to the site until a fix is released
  4. Review the site for unexpected changes or new administrator accounts if the theme was in use

Timeline

  1. 23 Oct 2026, 13:17 UTC
    Publicly disclosed
  2. 23 Oct 2026, 13:17 UTC
    Reported by NVD · NVD
  3. 25 Oct 2026, 17:05 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-112854 · GHSA-m93c-ph3f-wmg5
CVSS
9.8 / 10
EPSS
0.3% chance of exploitation within 30 days
Disclosed
23 Oct 2026, 13:17 UTC
On Zero Radar
before the radar started
Last change
25 Oct 2026, 17:05 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

Holistic Center WordPress theme can be abused by attackers via untrusted data · Zero Radar