# Webmail vulnerabilities > Webmail is made by Roundcube. We track 75 published vulnerabilities in it, across 140 versions. 9 of them are on the list of flaws known to be exploited, the newest added on 9 June 2025. If you run Webmail, check your version against the exploited flaws below and patch those first. Canonical page: https://www.precursorintelligence.com/product/roundcube/webmail ## At a glance - **Made by:** [Roundcube](https://www.precursorintelligence.com/vendors/roundcube) - **Published vulnerabilities:** 75 - **Known to be exploited:** 9 - **Versions tracked:** 140 - **Most recently added to the known-exploited list:** [CVE-2024-42009](https://www.precursorintelligence.com/what-is/cve-2024-42009), 9 June 2025. We keep watching the list. ## Which versions of Webmail do the exploited flaws hit? Each exploited flaw lists the versions it affects, as published. "before 1.5.8" means every version up to, but not including, 1.5.8. - [CVE-2024-42009](https://www.precursorintelligence.com/what-is/cve-2024-42009) (RoundCube Webmail Cross-Site Scripting Vulnerability): before 1.5.8, 1.6.0 to before 1.6.8 - [CVE-2024-37383](https://www.precursorintelligence.com/what-is/cve-2024-37383) (RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability): before 1.5.7, 1.6.0 to before 1.6.7 - [CVE-2020-13965](https://www.precursorintelligence.com/what-is/cve-2020-13965) (Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability): before 1.3.12, 1.4.0 to before 1.4.5 - [CVE-2023-43770](https://www.precursorintelligence.com/what-is/cve-2023-43770) (Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability): before 1.4.14, 1.5.0 to before 1.5.4, 1.6.0 to before 1.6.3 - [CVE-2023-5631](https://www.precursorintelligence.com/what-is/cve-2023-5631) (Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability): before 1.4.15, 1.5.0 to before 1.5.5, 1.6.0 to before 1.6.4 - [CVE-2021-44026](https://www.precursorintelligence.com/what-is/cve-2021-44026) (Roundcube Webmail SQL Injection Vulnerability): before 1.3.17, 1.4.0 to before 1.4.12 - [CVE-2020-12641](https://www.precursorintelligence.com/what-is/cve-2020-12641) (Roundcube Webmail Remote Code Execution Vulnerability): 1.2.0 to before 1.2.10, 1.3.0 to before 1.3.11, 1.4.0 to before 1.4.4 - [CVE-2020-35730](https://www.precursorintelligence.com/what-is/cve-2020-35730) (Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability): before 1.2.13, 1.3.0 to before 1.3.16, 1.4 to before 1.4.10 - [CVE-2017-16651](https://www.precursorintelligence.com/what-is/cve-2017-16651) (Roundcube Webmail File Disclosure Vulnerability): up to 1.1.9, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.3.0, 1.3.1, 1.3.2 ## Which Webmail vulnerabilities are being exploited? 9 flaws are on the government list of vulnerabilities known to be exploited, newest first: - [CVE-2024-42009](https://www.precursorintelligence.com/what-is/cve-2024-42009): RoundCube Webmail Cross-Site Scripting Vulnerability. Critical, CVSS 9.3, chance of use in 30 days 83%, known exploited since 9 June 2025. - [CVE-2024-37383](https://www.precursorintelligence.com/what-is/cve-2024-37383): RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability. Medium, CVSS 6.1, chance of use in 30 days 73%, known exploited since 24 October 2024. - [CVE-2020-13965](https://www.precursorintelligence.com/what-is/cve-2020-13965): Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability. Medium, CVSS 6.1, chance of use in 30 days 77%, known exploited since 26 June 2024. - [CVE-2023-43770](https://www.precursorintelligence.com/what-is/cve-2023-43770): Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability. Medium, CVSS 6.1, chance of use in 30 days 64%, known exploited since 12 February 2024. - [CVE-2023-5631](https://www.precursorintelligence.com/what-is/cve-2023-5631): Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability. Medium, CVSS 6.1, chance of use in 30 days 76%, known exploited since 26 October 2023. - [CVE-2021-44026](https://www.precursorintelligence.com/what-is/cve-2021-44026): Roundcube Webmail SQL Injection Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 70%, known exploited since 22 June 2023. - [CVE-2020-12641](https://www.precursorintelligence.com/what-is/cve-2020-12641): Roundcube Webmail Remote Code Execution Vulnerability. Critical, CVSS 9.8, chance of use in 30 days 84%, known exploited since 22 June 2023. - [CVE-2020-35730](https://www.precursorintelligence.com/what-is/cve-2020-35730): Roundcube Webmail Cross-Site Scripting (XSS) Vulnerability. Medium, CVSS 6.1, chance of use in 30 days 33%, known exploited since 22 June 2023. - [CVE-2017-16651](https://www.precursorintelligence.com/what-is/cve-2017-16651): Roundcube Webmail File Disclosure Vulnerability. High, CVSS 7.8, chance of use in 30 days 46%, known exploited since 3 November 2021. ## Which Webmail 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-2020-12641](https://www.precursorintelligence.com/what-is/cve-2020-12641): 84%, Critical (CVSS 9.8), known exploited - [CVE-2024-42009](https://www.precursorintelligence.com/what-is/cve-2024-42009): 83%, Critical (CVSS 9.3), known exploited - [CVE-2020-13965](https://www.precursorintelligence.com/what-is/cve-2020-13965): 77%, Medium (CVSS 6.1), known exploited - [CVE-2023-5631](https://www.precursorintelligence.com/what-is/cve-2023-5631): 76%, Medium (CVSS 6.1), known exploited - [CVE-2024-37383](https://www.precursorintelligence.com/what-is/cve-2024-37383): 73%, Medium (CVSS 6.1), known exploited - [CVE-2021-44026](https://www.precursorintelligence.com/what-is/cve-2021-44026): 70%, Critical (CVSS 9.8), known exploited - [CVE-2023-43770](https://www.precursorintelligence.com/what-is/cve-2023-43770): 64%, Medium (CVSS 6.1), known exploited - [CVE-2008-5619](https://www.precursorintelligence.com/what-is/cve-2008-5619): 59%, Critical (CVSS 10.0) - [CVE-2018-19206](https://www.precursorintelligence.com/what-is/cve-2018-19206): 56%, Medium (CVSS 6.1) - [CVE-2017-16651](https://www.precursorintelligence.com/what-is/cve-2017-16651): 46%, High (CVSS 7.8), known exploited ## Questions ### How many vulnerabilities does Webmail have? We track 75 published vulnerabilities listed under the name Webmail, across 140 versions. The most recent Webmail flaw added to the known-exploited list is CVE-2024-42009, on 9 June 2025. ### Which Webmail vulnerabilities are being exploited? 9 are on the list of flaws known to be exploited. The most recently added are CVE-2024-42009, CVE-2024-37383 and CVE-2020-13965. ### Which versions of Webmail do the exploited flaws affect? Each flaw names its own versions, usually as ranges. The newest, CVE-2024-42009, affects before 1.5.8, 1.6.0 to before 1.6.8. The versions for every exploited flaw are listed on this page. ### How do I get alerts for Webmail? Create a Precursor Intelligence account and track Webmail. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook. ## Running Webmail? 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