CVE-2015-8476

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2015-12-16 · updated 2026-06-17
Weakness: CWE-20

Description

Multiple CRLF injection vulnerabilities in PHPMailer before 5.2.14 allow attackers to inject arbitrary SMTP commands via CRLF sequences in an (1) email address to the validateAddress function in class.phpmailer.php or (2) SMTP command to the sendCommand function in class.smtp.php, a different vulnerability than CVE-2012-0796.

Affected products

Debian Linux: 6.0, 7.0, 8.0
Phpmailer Project Phpmailer: through 5.2.13

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177130.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177139.html
http://www.debian.org/security/2015/dsa-3416
http://www.openwall.com/lists/oss-security/2015/12/04/5
http://www.openwall.com/lists/oss-security/2015/12/05/1
http://www.securityfocus.com/bid/78619
https://github.com/PHPMailer/PHPMailer/commit/6687a96a18b8f12148881e4ddde795ae477284b0
https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.14
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177130.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177139.html
http://www.debian.org/security/2015/dsa-3416
http://www.openwall.com/lists/oss-security/2015/12/04/5

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