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CriticalVulnerabilityCVE-2026-62015updated 29 Oct 2026, 20:19 UTC

Gamezone game site software can be taken over without logging in

Attackers can send specially crafted data to the Gamezone website and make it run commands they choose, without needing a password. Anyone running this software is at risk of having their site and server taken over.

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. 1AttackerNeeds no login or account
  2. 2Crafted requestSent to the public website
  3. 3Unsafe input handlingData is unserialized by PHP without checks
  4. 4Code executionAttacker objects run on the server
  5. ResultAttacker controls the server

What happened

Unauthenticated PHP object injection in Gamezone versions 1.1.11 and earlier: untrusted input is passed to PHP unserialize(), allowing attacker-controlled objects to be created.

Why it is dangerous: An attacker who can reach the site without credentials may be able to execute code on the server, read or alter data, and use the server for further attacks. Sites running Gamezone that are reachable from the internet are most at risk.

Are you affected?

You are affected if you run Gamezone version 1.1.11 or earlier on a publicly reachable web server.

Gamezone <= 1.1.11

What to do

  1. Check whether your site runs Gamezone and which version it is
  2. Update Gamezone to a version newer than 1.1.11 once a fixed release is published
  3. If no fix is available yet, restrict access to the site or disable the affected Gamezone component
  4. Review server logs for unusual requests and check for unexpected files or accounts

Timeline

  1. 29 Oct 2026, 16:18 UTC
    Publicly disclosed
  2. 29 Oct 2026, 16:18 UTC
    Reported by NVD · NVD
  3. 29 Oct 2026, 16:20 UTC
    Picked up by Zero Radar
  4. 29 Oct 2026, 20:19 UTC
    GitHub Advisory reported on it · GitHub Advisory

Sources 2 reports, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-62015 · GHSA-wgcc-35hw-q5qh
CVSS
9.8 / 10
EPSS
0.4% chance of exploitation within 30 days
Disclosed
29 Oct 2026, 16:18 UTC
On Zero Radar
29 Oct 2026, 16:20 UTC (2 min after disclosure)
Last change
29 Oct 2026, 20:19 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

Gamezone game site software can be taken over without logging in · Zero Radar