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Servers and applications

CVE-2015-8476

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.

Severity
Medium 5.0
Published
16 Dec 2015
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
2% in the next 30 daysHigher than 80% of CVEs. EPSS by FIRST, 11 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Change some data
CVSS vector
AV:N/AC:L/Au:N/C:N/I:P/A:N
Sources
NVD

Affected software

SoftwareAffected versions
PHPMailerServers and applications · cpe:a:phpmailer_project:phpmailer
  • Every version up to 5.2.13

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8476
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8476