CVE-2018-15133

HIGH8.1

CISA KEV

Published 2018-08-09 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2018-15133 is a high-severity (CVSS 8.1) vulnerability in Laravel Laravel Framework. CISA added it to the Known Exploited Vulnerabilities catalog on January 16, 2024, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by February 6, 2024. CISA does not currently list it as used in ransomware campaigns. Laravel has 3 vulnerabilities in the KEV catalog, 1 of them linked to ransomware.

All 3 known-exploited Laravel vulnerabilities →

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.

CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-502CWE-502

CISA Known-Exploited Vulnerability

Product: Laravel — Laravel Framework

Name: Laravel Deserialization of Untrusted Data Vulnerability

Date added: 2024-01-16 · Due: 2024-02-06

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

References

View on NVD

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