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CriticalVulnerabilityCVE-2026-112848updated 25 Oct 2026, 17:05 UTC

Hostme v2 WordPress theme can be abused to run attacker-supplied objects

Hostme v2 accepts data that it does not check properly. An attacker who sends specially crafted data could make the website run code they chose, which can give them control of the site.

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

What happened

A deserialization of untrusted data flaw (object injection, CWE-502) affects the AivahThemes Hostme v2 (hostmev2) product in all versions through 7.0.

Why it is dangerous: An attacker who can exploit this could potentially take over the website, read or change its data, or use it for further attacks. Site owners and visitors who rely on the site are at risk.

Are you affected?

You are affected if you run the Hostme v2 theme (hostmev2) at version 7.0 or earlier.

AivahThemes Hostme v2 (hostmev2): all versions through 7.0

What to do

  1. Check whether your site uses the Hostme v2 theme and which version it is
  2. Watch for an update from AivahThemes and install any version later than 7.0 as soon as it is released
  3. Until a fix is available, limit access to the site's administration area and monitor for unusual activity, if you can

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-2026-112848 · GHSA-f5gh-pc33-83rx
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

Hostme v2 WordPress theme can be abused to run attacker-supplied objects · Zero Radar