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CVE

CVE-2017-5223

An issue was discovered in PHPMailer before 5.2.22. PHPMailer's msgHTML method applies transformations to an HTML docume

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.

MEDIUM · CVSS 5.5 EPSS 0.02922
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

1
phpmailer project phpmailer<= 5.2.21
⚠

Public Exploits & PoCs

3
webappsPHPMailer < 5.2.21 - Local File Disclosure2017-10-25
pockalilinux.co · phpmailer-cve-2017-5223-local-information-disclosure-vuln...kalilinux.co
pocwww.exploit-db.com · 43056www.exploit-db.com
▣

Scoring & Timeline

5.5
MEDIUM · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Jan 2017 · 06:59 AM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
⚑

Vendor Advisories

1
usnUSN-5956-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/95328Third Party AdvisoryVDB Entry
https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.mdIssue TrackingPatchThird Party Advisory
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