# CVE-2018-15133

In Laravel Framework through 5.5.40 and 5.6.x through 5.6.29, remote code execution might occur as a result of an unserialize call on a potentially untrusted X-XSRF-TOKEN value. This involves the decrypt method in Illuminate/Encryption/Encrypter.php and PendingBroadcast in gadgetchains/Laravel/RCE/3/chain.php in phpggc. The attacker must know the application key, which normally would never occur, but could happen if the attacker previously had privileged access or successfully accomplished a previous attack.

- Page: https://www.vulneraibility.com/cve/CVE-2018-15133
- CVSS: 8.1
- Known exploited: yes, in CISA KEV since 2024-01-16; CISA due date 2024-02-06
- EPSS: 76.57% (percentile 99.5)
- Public exploit code: 1 on Exploit-DB · 1 Metasploit module · 14 GitHub proofs of concept (first 2018-08-14)
- CISA SSVC: exploitation active, automatable no, technical impact total (assessed 2024-01-17)
- Weakness: CWE-502
- Published: 2018-08-09

## Affected

- laravel:laravel

## References

- [other] https://laravel.com/docs/5.6/upgrade#upgrade-5.6.30
- [other] http://packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.html
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-15133

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.