# Phpmailer Project vulnerabilities > Phpmailer Project has 10 published vulnerabilities across 1 product in our catalogue. 1 of them is on the list of flaws known to be exploited, so criminals are using them now. The most affected product is Phpmailer, with 10. If you run Phpmailer Project software, patch the exploited flaws first. Canonical page: https://www.precursorintelligence.com/vendors/phpmailer_project ## At a glance - **Published vulnerabilities:** 10 - **Known to be exploited:** 1 - **Products:** 1 - **Versions:** 51 - **Most recently added to the known-exploited list:** [CVE-2016-10033](https://www.precursorintelligence.com/what-is/cve-2016-10033), 7 July 2025. We keep watching the list. ## Which Phpmailer Project products have the most vulnerabilities? - [Phpmailer](https://www.precursorintelligence.com/product/phpmailer_project/phpmailer): 10 published vulnerabilities, 51 versions Each product page lists its own known-exploited flaws. ## Which Phpmailer Project vulnerabilities are being exploited? 1 flaw is on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2016-10033](https://www.precursorintelligence.com/what-is/cve-2016-10033): PHPMailer Command Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days >99%, known exploited since 7 July 2025. ## Which Phpmailer Project flaws are most likely to be used? Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days): - [CVE-2016-10033](https://www.precursorintelligence.com/what-is/cve-2016-10033): >99%, Critical (CVSS 9.8), known exploited - [CVE-2016-10045](https://www.precursorintelligence.com/what-is/cve-2016-10045): 98%, Critical (CVSS 9.8) - [CVE-2020-13625](https://www.precursorintelligence.com/what-is/cve-2020-13625): 3.8%, High (CVSS 7.5) - [CVE-2020-36326](https://www.precursorintelligence.com/what-is/cve-2020-36326): 3.1%, Critical (CVSS 9.8) - [CVE-2021-34551](https://www.precursorintelligence.com/what-is/cve-2021-34551): 2.8%, High (CVSS 8.1) - [CVE-2017-11503](https://www.precursorintelligence.com/what-is/cve-2017-11503): 2.4%, Medium (CVSS 6.1) - [CVE-2021-3603](https://www.precursorintelligence.com/what-is/cve-2021-3603): 2.3%, High (CVSS 8.1) - [CVE-2018-19296](https://www.precursorintelligence.com/what-is/cve-2018-19296): 2.2%, High (CVSS 8.8) - [CVE-2017-5223](https://www.precursorintelligence.com/what-is/cve-2017-5223): 2.1%, Medium (CVSS 5.5) - [CVE-2015-8476](https://www.precursorintelligence.com/what-is/cve-2015-8476): 2.0%, Medium (CVSS 5.0) ## All Phpmailer Project products we track 1 products with at least one tracked version, most vulnerabilities first: - [Phpmailer](https://www.precursorintelligence.com/product/phpmailer_project/phpmailer): 10 vulnerabilities, 51 versions ## Questions ### How many vulnerabilities does Phpmailer Project have? Our catalogue lists 10 published vulnerabilities across 1 product and 51 versions from Phpmailer Project. The most recent Phpmailer Project flaw added to the known-exploited list is CVE-2016-10033, on 7 July 2025. ### Which Phpmailer Project vulnerabilities are being exploited? 1 Phpmailer Project vulnerability is on the list of flaws known to be exploited. The most recently added is CVE-2016-10033. The full list is on this page. ### Which Phpmailer Project product has the most vulnerabilities? Phpmailer, with 10 published vulnerabilities. Its own page lists the ones known to be exploited. ### How do I get alerts for new Phpmailer Project vulnerabilities? Create a Precursor Intelligence account and track the Phpmailer Project products you run. We match them against every published flaw, give each one a risk score from 0 to 100 and tell you as soon as we spot one that affects you, by email, in the app or by webhook. ## Running Phpmailer Project? Precursor Intelligence keeps checking for you: - **Tell us what you run.** Pick your software from a list, or let us work it out from your website. - **We match it to every flaw.** Over 400,000 published flaws, checked against your list. - **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it. - **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools. Start free (no card, nothing to install): https://www.precursorintelligence.com/register Book a demo: https://www.precursorintelligence.com/contact