---
id: CVE-2026-29001
title: TastyIgniter 4.4.5 PHP Object Injection via Settings Deserialization
summary: >-
  TastyIgniter through 4.4.5 contain a PHP object injection vulnerability that
  allows authenticated administrators to achieve arbitrary code execution by
  submitting a serialized PHP object as a settings value, which is stored
  unsanitized a…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: tastyigniter
product: TastyIgniter
affected:
  - TastyIgniter <= 4.4.5
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T21:03:25.481Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-29001'
references:
  - url: >-
      https://github.com/tastyigniter/TastyIgniter/issues/1205#issuecomment-6314187869
    label: Researcher Disclosure
  - url: >-
      https://www.vulncheck.com/advisories/tastyigniter-php-object-injection-via-settings-deserialization
    label: >-
      VulnCheck Advisory: TastyIgniter 4.4.5 PHP Object Injection via Settings
      Deserialization
tags:
  - cve.org
ingestedAt: '2026-10-21T22:18:33.774Z'
---

## Overview

TastyIgniter through 4.4.5 contain a PHP object injection vulnerability that allows authenticated administrators to achieve arbitrary code execution by submitting a serialized PHP object as a settings value, which is stored unsanitized and later unserialized by getValueAttribute() when the setting is read. Attackers can submit a serialized gadget chain, such as one generated via phpggc, through the admin settings form (for example the maintenance_message setting loaded by CheckMaintenance.php) to achieve arbitrary operating-system command execution as the PHP application process user, with the impact persisting until the value is overwritten.

## Affected

- `TastyIgniter <= 4.4.5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.