CVE-2018-15133

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Summary

CVECVE-2018-15133
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-08-09 19:29:00 UTC
Updated2024-01-17 02:00:00 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.768140000 probability, percentile 0.994970000 (date 2026-07-21)

CISA KEV: Listed on 2024-01-16; due 2024-02-06; ransomware use Unknown

Problem Types: CWE-502

CISA Known Exploited Vulnerability

VendorLaravel
ProductLaravel Framework
NameLaravel Deserialization of Untrusted Data Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttps://laravel.com/docs/5.6/upgrade#upgrade-5.6.30; https://nvd.nist.gov/vuln/detail/CVE-2018-15133

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Laravel Laravel All All All All
Application Laravel Laravel All All All All

References

ReferenceSourceLinkTags
PHP Laravel Framework Token Unserialize Remote Command Execution ≈ Packet Storm MISC packetstormsecurity.com
Upgrade Guide - Laravel - The PHP Framework For Web Artisans CONFIRM laravel.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

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