Technology · Roundcube
Roundcube Webmail vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 59 vulnerabilities in Roundcube Webmail: 1 in the last 7 days and 18 in the last 90 days, 11 of them critical and 11 exploited in the wild. The most recent, CVE-2026-126813, was published on 11 November 2026. 17 vulnerabilities in the last four weeks, up from none in the four before.
- Last 7 days
- 1
- Last 90 days
- 18
- Critical, all time
- 11
- Exploited in the wild
- 11
About Roundcube Webmail
Web-based email client by Roundcube.
Latest Roundcube Webmail vulnerabilities
- CVE-2026-126813: Roundcube Webmail IMAP command injection in message cachemediumCVSS 6.8
- CVE-2026-114732: Roundcube Webmail improper authentication in multi-host installationsmediumCVSS 6.8
- CVE-2026-114731: Roundcube Webmail uncontrolled resource consumption in CSS proxymediumCVSS 5.3
- CVE-2026-114730: Roundcube Webmail server-side request forgery filter bypasshighCVSS 7.2
- CVE-2026-114729: Roundcube Webmail content blocking bypass via SVG SMILmediumCVSS 5.3
- CVE-2026-114728: Roundcube Webmail remote content blocking bypass in CSS FuncIRI handlingmediumCVSS 5.3
- CVE-2026-114727: Roundcube Webmail unsafe content passed to ImageMagickhighCVSS 8.3
- CVE-2026-114726: Roundcube Webmail mail header injection in Bounce actionmediumCVSS 5.8
- CVE-2026-114725: Roundcube Webmail mail header injectionmediumCVSS 5
- CVE-2026-114724: Roundcube Webmail object injection in session unserializationhighCVSS 7.4
- CVE-2026-114722: Roundcube Webmail CSS scoping bypass in HTML messagesmediumCVSS 6.5
- CVE-2026-114720: Roundcube Webmail IMAP command injection via CRLF in flag parameterhighCVSS 7.1
- CVE-2026-114718: Roundcube Webmail cross-site scripting in password pluginmediumCVSS 4.7
- CVE-2026-114717: Roundcube Webmail mail header injection via forwarded message subjectmediumCVSS 4
- CVE-2026-114716: Roundcube Webmail mail header injection in inline image data URIhighCVSS 8.5
- CVE-2026-114715: Roundcube Webmail incorrect authorization in Modoboa password drivermediumCVSS 6.8
- CVE-2026-114714: Roundcube Webmail path traversal in squirrelmail_usercopy pluginmediumCVSS 5.3
- CVE-2026-113386: Roundcube Webmail IMAP command injection in mail actionshighCVSS 7.1
- CVE-2026-54433: Roundcube Webmail stored XSS in plain-text renderinghighCVSS 7.2
- CVE-2026-54432: Roundcube Webmail stored XSS in attachment-validation warning pagemediumCVSS 4.7
- CVE-2026-62644: Roundcube Webmail username spoofing in password pluginmediumCVSS 6.4
- CVE-2026-62643: Roundcube Webmail SSRF via insufficient CSS sanitizationhighCVSS 7.2
- CVE-2026-62642: Roundcube Webmail infinite loop in TNEF decodermediumCVSS 4.3
- CVE-2026-62641: Roundcube Webmail denial of service in TNEF decodermediumCVSS 4.3
- CVE-2026-9818: Roundcube Webmail SSRF bypass in HTML sanitizationmediumCVSS 4.7
Most severe Roundcube Webmail vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2021-44026: Roundcube Webmail SQL Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2020-12641: Roundcube Webmail Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2024-42009: Roundcube Webmail XSS in message_body functioncriticalexploited in the wildCVSS 9.3EPSS 91.4%
- CVE-2017-16651: Roundcube Webmail File Disclosure Vulnerabilitycriticalexploited in the wildCVSS 7.8
- CVE-2025-68461: Roundcube Webmail XSS in SVG animate tagcriticalexploited in the wildCVSS 7.2EPSS 8.5%
- CVE-2024-37383: RoundCube Webmail Cross-Site Scripting (XSS) Vulnerabilitycriticalexploited in the wildCVSS 6.1
- CVE-2020-13965: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerabilitycriticalexploited in the wildCVSS 6.1
- CVE-2023-43770: Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerabilitycriticalexploited in the wildCVSS 6.1
- CVE-2020-35730: Roundcube Webmail Cross-Site Scripting (XSS) Vulnerabilitycriticalexploited in the wildCVSS 6.1
- CVE-2023-5631: Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerabilitycriticalexploited in the wildCVSS 5.4
Vulnerabilities per week
17 vulnerabilities in the last four weeks, up from none in the four before. 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 | 17 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 1 | 0 |
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A live badge for a README, a status page or an internal wiki: how many Roundcube Webmail vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/webmail)<a href="https://junglewise.ai/threats/technologies/webmail"><img src="https://junglewise.ai/threats/technologies/webmail/badge.svg" alt="Roundcube Webmail 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/webmail.json, and this page as text at https://junglewise.ai/threats/technologies/webmail.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, "Roundcube Webmail vulnerabilities", https://junglewise.ai/threats/technologies/webmail, 11 November 2026.