What’s Vulnerable › Vulnerabilities

CVE-2026-29001: TastyIgniter 4.4.5 PHP Object Injection via Settings Deserialization

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-28
• Weakness: CWE-502

Description

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 products

• tastyigniter/tastyigniter: through 4.4.5

References

• https://github.com/tastyigniter/TastyIgniter/issues/1205#issuecomment-6314187869
• https://www.vulncheck.com/advisories/tastyigniter-php-object-injection-via-settings-deserialization
• https://github.com/tastyigniter/TastyIgniter/issues/1205#issuecomment-6314187869

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