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High

PHPMailer vulnerable to email header injection

  • Disclosed: 06.10.2022
  • Updated: 11.10.2026 10:22

Impact

Arbitrary additional email headers can be injected via crafted From or Sender headers.

Patches

Fixed in 2.2.1

Workarounds

Filter user-supplied values prior to using them in From or Sender properties.

References

https://nvd.nist.gov/vuln/detail/CVE-2012-0796

For more information

If you have any questions or comments about this advisory:

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Composer package phpmailer/phpmailer < 2.2.1 2.2.1

References

CVSS score -
Weakness (CWE)
CWE-94
Platform
Composer
Package
phpmailer/phpmailer
Disclosed
06.10.2022
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-398j-f7m7-795j - CC BY 4.0

Vulnerability history: phpmailer/phpmailer

All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (13) in the archive
Total entries
13
First → latest
12.2016 02.2024
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 2
  • High 7
  • Medium 3
  • Low 1

Disclosures per year

earlier: 1

Severity:
  1. PHPMailer Shell command injection
    High CVE-2007-3215 < 1.7.4 1.7.4
  2. PHPMailer vulnerable to email header injection this entry
    High CVE-2012-0796 < 2.2.1 2.2.1
  3. PHPMailer susceptible to arbitrary code execution
    High CVE-2008-5619 < 5.2.10 5.2.10
  4. PHPMailer untrusted code may be run from an overridden address validator
    High · 8.1 CVE-2021-3603 < 6.5.0 6.5.0
  5. Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows
    High · 8.1 CVE-2021-34551 < 6.5.0 6.5.0
  6. Object injection in PHPMailer/PHPMailer
    Critical · 9.8 CVE-2020-36326 >= 6.1.8, < 6.4.1 6.4.1
  7. Insufficient output escaping of attachment names in PHPMailer
    High · 7.5 CVE-2020-13625 < 6.1.6 6.1.6
  8. Phar object injection in PHPMailer
    High · 8.8 CVE-2018-19296 >= 5.0.0, < 5.2.27, >= 6.0.0, < 6.0.6 5.2.27, 6.0.6
  9. Jomres
    Critical · 9.8 CVE-2016-10045 >= 5.0.0, < 5.2.18 5.2.18

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