Medium severity · published Jan 16, 2017
CVE-2017-5223
An issue was discovered in PHPMailer before 5.2.22
5.5
CVSS
2.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.1% · higher than 82% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
Phpmailer · Phpmailer Project
through 5.2.21 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5223
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-5223
Exploit
http://kalilinux.co/2017/01/12/phpmailer-cve-2017-5223-local-information-disclosure-vulnerability-analysis/
Third Party Advisory
http://www.securityfocus.com/bid/95328
Issue Tracking
https://github.com/PHPMailer/PHPMailer/blob/master/SECURITY.md
www.exploit-db.com
https://www.exploit-db.com/exploits/43056/
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