CVE-2017-11503
6.1 · MEDIUMOverview
CVE-2017-11503 is a medium-severity vulnerability affecting phpmailer_project phpmailer. It was published on July 20, 2017 and has a CVSS 3.0 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.0 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
PHPMailer 5.2.23 has XSS in the "From Email Address" and "To Email Address" fields of code_generator.php.
Remediation
Check the references section for vendor advisories and patches from phpmailer_project. Update phpmailer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
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References
Frequently Asked Questions
What is CVE-2017-11503?
CVE-2017-11503 is a medium-severity vulnerability affecting phpmailer_project phpmailer. It was published on July 20, 2017 and has a CVSS 3.0 base score of 6.1 (MEDIUM).
How severe is CVE-2017-11503?
This vulnerability has a CVSS 3.0 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2017-11503?
Check the references section for vendor advisories and patches from phpmailer_project. Update phpmailer to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2017-11503?
CyberStrike's AI-powered security agents can automatically detect CVE-2017-11503 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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