Technology · PHP
PHPMailer vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in PHPMailer: 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-2020-36326, was published on 4 May 2021.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 2
- Exploited in the wild
- 1
About PHPMailer
PHP library for sending email messages with support for SMTP, PHP mail(), and sendmail.
Latest PHPMailer vulnerabilities
- CVE-2020-36326: PHPMailer object injection in attachment processingcriticalCVSS 9.8EPSS 3.1%
- CVE-2016-10033: Remote code execution in PHPMailercriticalexploited in the wildCVSS 3.1EPSS 99.7%
- CVE-2017-5223: PHPMailer local file disclosure in msgHTML methodmediumCVSS 5.5EPSS 2.2%
Most severe PHPMailer vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2016-10033: Remote code execution in PHPMailercriticalexploited in the wildCVSS 3.1EPSS 99.7%
- CVE-2020-36326: PHPMailer object injection in attachment processingcriticalCVSS 9.8EPSS 3.1%
- CVE-2017-5223: PHPMailer local file disclosure in msgHTML methodmediumCVSS 5.5EPSS 2.2%
Vulnerabilities per week
Nothing was published in the last eight weeks. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many PHPMailer vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/phpmailer)<a href="https://junglewise.ai/threats/technologies/phpmailer"><img src="https://junglewise.ai/threats/technologies/phpmailer/badge.svg" alt="PHPMailer vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/phpmailer.json, and this page as text at https://junglewise.ai/threats/technologies/phpmailer.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "PHPMailer vulnerabilities", https://junglewise.ai/threats/technologies/phpmailer, 9 November 2026.