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TI-2017-08506 Aliases CVE-2017-11503GHSA-58mj-pw57-4vm2

PHPMailer 5.2.23 has XSS in the "From Email Address" and "To Email Address" fields of code_generator.php.

Priority LOW 32CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

PHPMailer 5.2.23 has XSS in the "From Email Address" and "To Email Address" fields of code_generator.php.

Why it matters now

EPSS 0.024 84th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed phpmailer/phpmailer (Packagist): 5.2.24

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—phpmailer/phpmailer (Packagist)5.0.0 to before 5.2.245.2.24Patch availableGHSA-58mj-pw57-4vm2
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • phpmailer/phpmailer (Packagist) Vendor— Affected 5.0.0 to before 5.2.24 Fixed in 5.2.24 Patch available GHSA-58mj-pw57-4vm2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:phpmailer_project:phpmailer:5.2.23:*:*:*:*:*:*:*5.2.23VulnerablePhpmailer Project
  • cpe:2.3:a:phpmailer_project:phpmailer:5.2.23:*:*:*:*:*:*:* Versions 5.2.23 Vulnerable ·Phpmailer Project

Remediation

  • Fix · GHSA-58mj-pw57-4vm2 phpmailer/phpmailer (Packagist) Fixed in 5.2.24 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-11503
  2. 2026-10-03 Alias added: GHSA-58mj-pw57-4vm2

References

Exploit 1

Patch 1

Advisory 1

Other 2

  • TI-2016-08118 The mailSend function in the isMail transport in PHPMailer before 5.2.18 might allow… KEVCVSS 3.1CRITICAL 9.8
  • TI-2016-08129 The isMail transport in PHPMailer before 5.2.20 might allow remote attackers to pass… CVSS 3.1CRITICAL 9.8
  • TI-2020-18609 PHPMailer 6.1.8 through 6.4.0 allows object injection through Phar Deserialization via… CVSS 3.1CRITICAL 9.8
  • TI-2018-13680 PHPMailer before 5.2.27 and 6.x before 6.0.6 is vulnerable to an object injection attack. CVSS 3.1HIGH 8.8
  • TI-2021-13570 PHPMailer before 6.5.0 on Windows allows remote code execution if lang_path is untrusted data and has a UNC pathname. CVSS 3.1HIGH 8.1
  • TI-2021-02549 Inclusion of Functionality from Untrusted Control Sphere in PHPMailer/PHPMailer CVSS 3.1HIGH 8.1
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences