High severity8.1CISA KEVNVD Advisory· Published Aug 9, 2018· Updated Jun 17, 2026
CVE-2018-15133
CVE-2018-15133
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
laravel/frameworkPackagist | <= 5.5.40 | — |
laravel/frameworkPackagist | >= 5.6.0, < 5.6.30 | 5.6.30 |
Affected products
1Patches
Vulnerability mechanics
References
6- packetstormsecurity.com/files/153641/PHP-Laravel-Framework-Token-Unserialize-Remote-Command-Execution.htmlnvdExploitThird Party AdvisoryVDB EntryWEB
- github.com/advisories/GHSA-qvqm-h22r-4cp9ghsaADVISORY
- laravel.com/docs/5.6/upgradenvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2018-15133ghsaADVISORY
- github.com/laravel/framework/commit/d84cf988ed5d4661a4bf1fdcb08f5073835083a0ghsaWEB
- www.cisa.gov/known-exploited-vulnerabilities-catalognvdUS Government Resource
News mentions
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