Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2018-19296

Deserialization of Untrusted Data

Published: Nov 16, 2018 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-19296
CWEhttps://cwe.mitre.org/data/definitions/502.html

PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Name Vendor Start Version End Version
Phpmailer Phpmailer_project * 5.2.27 (excluding)
Phpmailer Phpmailer_project 6.0.0 (including) 6.0.6 (excluding)
Libphp-phpmailer Ubuntu bionic *
Libphp-phpmailer Ubuntu cosmic *
Libphp-phpmailer Ubuntu esm-apps/bionic *
Libphp-phpmailer Ubuntu esm-apps/xenial *
Libphp-phpmailer Ubuntu trusty *
Libphp-phpmailer Ubuntu upstream *
Libphp-phpmailer Ubuntu xenial *

Potential Mitigations

  • Make fields transient to protect them from deserialization.
  • An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2025 Aqua Security Software Ltd.   Privacy Policy | Terms of Use