CVE-2017-11503: Cross-site scripting in PHPMailer

CVE-2017-11503 · Severity: low · CVSS 3 · Published 2020-03-05

Cross-site scripting in PHPMailer

Technologies: phpmailer/phpmailer (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2017-11503 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2017-11503 being exploited in the wild.
How severe is CVE-2017-11503?
Low severity, with a CVSS score of 3, published 5 March 2020.
Which products and versions are affected?
phpmailer/phpmailer (Packagist) ECOSYSTEM:introduced=5.0.0,fixed=5.2.24.
Is there a fix for CVE-2017-11503?
Yes. phpmailer/phpmailer (Packagist): upgrade to 5.2.24 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2017-11503?
Check whether you run phpmailer/phpmailer (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • phpmailer/phpmailer (Packagist): upgrade to 5.2.24 or later
    composer require phpmailer/phpmailer:^5.2.24

Affected products

  • phpmailer/phpmailer (Packagist) ECOSYSTEM:introduced=5.0.0,fixed=5.2.24

Identifiers

  • CVE-2017-11503
  • GHSA-58mj-pw57-4vm2

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