An issue was discovered in PHPMailer before 5.2.22. PHPMailer's msgHTML method applies transformations to an HTML document to make it usable as an email message body. One of the transformations is to convert relative image URLs into attachments using a script-provided base directory. If no base directory is provided, it resolves to /, meaning that relative image URLs get treated as absolute local file paths and added as attachments. To form a remote vulnerability, the msgHTML method must be called, passed an unfiltered, user-supplied HTML document, and must not set a base directory.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-817-1 libphp-phpmailer security update
Debian DLA Debian DLA DLA-1591-1 libphp-phpmailer security update
EUVD EUVD EUVD-2020-0329 An issue was discovered in PHPMailer before 5.2.22. PHPMailer's msgHTML method applies transformations to an HTML document to make it usable as an email message body. One of the transformations is to convert relative image URLs into attachments using a script-provided base directory. If no base directory is provided, it resolves to /, meaning that relative image URLs get treated as absolute local file paths and added as attachments. To form a remote vulnerability, the msgHTML method must be called, passed an unfiltered, user-supplied HTML document, and must not set a base directory.
Github GHSA Github GHSA GHSA-4x5h-cr29-fhp6 Local file disclosure in PHPMailer
Ubuntu USN Ubuntu USN USN-5956-1 PHPMailer vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-05T14:55:35.461Z

Reserved: 2017-01-09T00:00:00

Link: CVE-2017-5223

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2017-01-16T06:59:00.197

Modified: 2025-04-20T01:37:25.860

Link: CVE-2017-5223

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.