Vendor
Roundcube vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 37 vulnerabilities in Roundcube: 0 in the last 7 days and 6 in the last 90 days, 11 of them critical and 11 exploited in the wild. The most recent, CVE-2026-54433, was published on 14 July 2026. 1 technology has a page of its own.
- Last 7 days
- 0
- Last 90 days
- 6
- Critical, all time
- 11
- Exploited in the wild
- 11
About Roundcube
An open-source project providing a browser-based IMAP client.
Roundcube technologies
Latest Roundcube vulnerabilities
- 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
- CVE-2026-48849: Roundcube Webmail stored XSS in draft restore dialog subject fieldmediumCVSS 4.4EPSS 0.0%
- CVE-2026-48848: Roundcube Webmail CSS injection in HTML sanitizer via SVG animatehighCVSS 7.2EPSS 0.0%
- CVE-2026-48847: Roundcube Webmail arbitrary file deletion via session poisoninglowCVSS 3.7EPSS 0.1%
- CVE-2026-48846: Roundcube Webmail remote image blocking bypass via CSS var()mediumCVSS 6.5EPSS 0.0%
- CVE-2026-48845: Roundcube Webmail remote image blocking bypass in HTML sanitizermediumCVSS 6.5EPSS 0.0%
- CVE-2026-48844: Roundcube Webmail code injection in LDAP autovalues optionhighCVSS 7.5EPSS 0.1%
- CVE-2026-48843: Roundcube Webmail SSRF via insufficient CSS sanitizationhighCVSS 7.2EPSS 0.0%
- CVE-2026-48842: Roundcube Webmail SQL injection in virtuser_query pluginhighCVSS 8.1EPSS 0.1%
- CVE-2026-35545: Roundcube Webmail remote image blocking bypass in SVG contentmediumCVSS 5.3EPSS 0.3%
- CVE-2026-35544: Roundcube Webmail CSS sanitization bypass in HTML emailmediumCVSS 5.3EPSS 0.4%
- CVE-2026-35543: Roundcube Webmail remote image blocking bypass in SVG contentmediumCVSS 5.3EPSS 0.4%
- CVE-2026-35542: Roundcube Webmail remote image blocking bypass in BODY elementmediumCVSS 5.3EPSS 0.4%
- CVE-2026-35541: Roundcube Webmail type confusion in password pluginmediumCVSS 4.2EPSS 0.2%
- CVE-2026-35540: Roundcube Webmail SSRF via insufficient CSS sanitizationmediumCVSS 5.4EPSS 0.3%
- CVE-2026-35539: Roundcube Webmail XSS in HTML attachment previewmediumCVSS 6.1EPSS 0.3%
- CVE-2026-35538: Roundcube Webmail IMAP injection in mail searchlowCVSS 3.1EPSS 0.3%
- CVE-2026-35537: Roundcube Webmail unsafe deserialization in session handlerlowCVSS 3.7EPSS 0.5%
- CVE-2025-49113: Roundcube Webmail PHP deserialization in upload.phpcriticalexploited in the wildCVSS 9.9EPSS 90.4%
Most severe Roundcube vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2025-49113: Roundcube Webmail PHP deserialization in upload.phpcriticalexploited in the wildCVSS 9.9EPSS 90.4%
- 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
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 6 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 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 |
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/vendors/roundcube.json, 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 vulnerabilities", https://junglewise.ai/threats/vendors/roundcube, 26 September 2026.