# phpmailer/phpmailer (Packagist) vulnerabilities Source: https://junglewise.ai/threats/technologies/phpmailer-phpmailer Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/phpmailer-phpmailer.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 14 vulnerabilities in phpmailer/phpmailer (Packagist): 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 1 exploited in the wild. The most recent, CVE-2006-5734, was published on 2 February 2024. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 0 - All time: 14 (2 critical, 1 exploited in the wild) ## About phpmailer/phpmailer (Packagist) A PHP library for sending emails securely and reliably via code. ## Latest phpmailer/phpmailer (Packagist) vulnerabilities - [CVE-2006-5734: PHPMailer Local file inclusion](https://junglewise.ai/threats/cve-2006-5734-phpmailer-local-file-inclusion) (info, published 2 Feb 2024) - [CVE-2007-3215: PHPMailer Shell command injection](https://junglewise.ai/threats/cve-2007-3215-phpmailer-shell-command-injection) (info, published 2 Feb 2024) - [CVE-2012-0796: PHPMailer vulnerable to email header injection](https://junglewise.ai/threats/cve-2012-0796-phpmailer-vulnerable-to-email-header-injection) (info, published 6 Oct 2022) - [CVE-2008-5619: PHPMailer susceptible to arbitrary code execution](https://junglewise.ai/threats/cve-2008-5619-phpmailer-susceptible-to-arbitrary-code-execution) (info, published 14 May 2022) - [CVE-2021-3603: PHPMailer untrusted code may be run from an overridden address validator](https://junglewise.ai/threats/cve-2021-3603-phpmailer-untrusted-code-may-be-run-from-an-overridden-address) (low, CVSS 3.1, published 22 Jun 2021) - [CVE-2021-34551: Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows](https://junglewise.ai/threats/cve-2021-34551-remote-code-execution-vulnerability-in-phpmailer-6-4-1-running-on) (low, CVSS 3.1, published 22 Jun 2021) - [CVE-2020-36326: PHPMailer object injection in attachment processing](https://junglewise.ai/threats/cve-2020-36326-phpmailer-object-injection-in-attachment-processing) (critical, CVSS 9.8, published 4 May 2021) - [CVE-2020-13625: Insufficient output escaping of attachment names in PHPMailer](https://junglewise.ai/threats/cve-2020-13625-insufficient-output-escaping-of-attachment-names-in-phpmailer) (low, CVSS 3.1, published 27 May 2020) - [CVE-2015-8476: SMTP Injection in PHPMailer](https://junglewise.ai/threats/cve-2015-8476-smtp-injection-in-phpmailer) (info, published 5 Mar 2020) - [CVE-2016-10033: Remote code execution in PHPMailer](https://junglewise.ai/threats/cve-2016-10033-phpmailer-command-injection-in-mailsend-function) (critical, exploited in the wild, CVSS 3.1, published 5 Mar 2020) - [CVE-2016-10045: Remote code execution in PHPMailer](https://junglewise.ai/threats/cve-2016-10045-remote-code-execution-in-phpmailer) (low, CVSS 3.1, published 5 Mar 2020) - [CVE-2017-11503: Cross-site scripting in PHPMailer](https://junglewise.ai/threats/cve-2017-11503-cross-site-scripting-in-phpmailer) (low, CVSS 3, published 5 Mar 2020) - [CVE-2018-19296: Phar object injection in PHPMailer](https://junglewise.ai/threats/cve-2018-19296-phar-object-injection-in-phpmailer) (low, CVSS 3.1, published 5 Mar 2020) - [CVE-2017-5223: PHPMailer local file disclosure in msgHTML method](https://junglewise.ai/threats/cve-2017-5223-phpmailer-local-file-disclosure-in-msghtml-method) (medium, CVSS 5.5, published 16 Jan 2017) ## Most severe phpmailer/phpmailer (Packagist) vulnerabilities - [CVE-2016-10033: Remote code execution in PHPMailer](https://junglewise.ai/threats/cve-2016-10033-phpmailer-command-injection-in-mailsend-function) (critical, exploited in the wild, CVSS 3.1, published 5 Mar 2020) - [CVE-2020-36326: PHPMailer object injection in attachment processing](https://junglewise.ai/threats/cve-2020-36326-phpmailer-object-injection-in-attachment-processing) (critical, CVSS 9.8, published 4 May 2021) - [CVE-2017-5223: PHPMailer local file disclosure in msgHTML method](https://junglewise.ai/threats/cve-2017-5223-phpmailer-local-file-disclosure-in-msghtml-method) (medium, CVSS 5.5, published 16 Jan 2017) - [CVE-2016-10045: Remote code execution in PHPMailer](https://junglewise.ai/threats/cve-2016-10045-remote-code-execution-in-phpmailer) (low, CVSS 3.1, published 5 Mar 2020) - [CVE-2020-13625: Insufficient output escaping of attachment names in PHPMailer](https://junglewise.ai/threats/cve-2020-13625-insufficient-output-escaping-of-attachment-names-in-phpmailer) (low, CVSS 3.1, published 27 May 2020) - [CVE-2021-34551: Remote Code Execution vulnerability in PHPMailer 6.4.1 running on Windows](https://junglewise.ai/threats/cve-2021-34551-remote-code-execution-vulnerability-in-phpmailer-6-4-1-running-on) (low, CVSS 3.1, published 22 Jun 2021) - [CVE-2021-3603: PHPMailer untrusted code may be run from an overridden address validator](https://junglewise.ai/threats/cve-2021-3603-phpmailer-untrusted-code-may-be-run-from-an-overridden-address) (low, CVSS 3.1, published 22 Jun 2021) - [CVE-2018-19296: Phar object injection in PHPMailer](https://junglewise.ai/threats/cve-2018-19296-phar-object-injection-in-phpmailer) (low, CVSS 3.1, published 5 Mar 2020) - [CVE-2017-11503: Cross-site scripting in PHPMailer](https://junglewise.ai/threats/cve-2017-11503-cross-site-scripting-in-phpmailer) (low, CVSS 3, published 5 Mar 2020) - [CVE-2008-5619: PHPMailer susceptible to arbitrary code execution](https://junglewise.ai/threats/cve-2008-5619-phpmailer-susceptible-to-arbitrary-code-execution) (info, published 14 May 2022) ## Vulnerabilities per week Nothing was published in the last eight weeks. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Packagist technologies - [moodle/moodle (Packagist)](https://junglewise.ai/threats/technologies/moodle-moodle): 434 vulnerabilities - [magento/community-edition (Packagist)](https://junglewise.ai/threats/technologies/packagist-magento-community-edition): 362 vulnerabilities - [typo3/cms (Packagist)](https://junglewise.ai/threats/technologies/packagist-typo3-cms): 187 vulnerabilities - [wwbn/avideo (Packagist)](https://junglewise.ai/threats/technologies/wwbn-avideo): 164 vulnerabilities - [magento/project-community-edition (Packagist)](https://junglewise.ai/threats/technologies/magento-project-community-edition): 161 vulnerabilities - [drupal/core (Packagist)](https://junglewise.ai/threats/technologies/packagist-drupal-core): 150 vulnerabilities - [pimcore/pimcore (Packagist)](https://junglewise.ai/threats/technologies/pimcore-pimcore): 145 vulnerabilities - [craftcms/cms (Packagist)](https://junglewise.ai/threats/technologies/craftcms-cms): 143 vulnerabilities - [dolibarr/dolibarr (Packagist)](https://junglewise.ai/threats/technologies/dolibarr-dolibarr): 127 vulnerabilities - [getgrav/grav (Packagist)](https://junglewise.ai/threats/technologies/getgrav-grav): 127 vulnerabilities - [typo3/cms-core (Packagist)](https://junglewise.ai/threats/technologies/typo3-cms-core): 127 vulnerabilities - [concrete5/concrete5 (Packagist)](https://junglewise.ai/threats/technologies/concrete5-concrete5): 122 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "phpmailer/phpmailer (Packagist) vulnerabilities", https://junglewise.ai/threats/technologies/phpmailer-phpmailer, 9 November 2026.