CVE-2021-44025

Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to XSS in handling an attachment's filename extension when displaying a MIME type warning message.

• CWE-79

• https://bugs.debian.org/1000156Mailing List, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/7d7b1dfeff795390b69905ceb63d6391b5b0dfe7Patch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/faf99bf8a2b7b7562206fa047e8de652861e624aPatch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/issues/8193Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00004.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDVGIZMQJ5IOM47Y3SAAJRN5VPANKTKO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TP3Y5RXTUUOUODNG7HFEKWYNIPIT2NL4/
• https://www.debian.org/security/2021/dsa-5013Third Party Advisory
• https://bugs.debian.org/1000156Mailing List, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/7d7b1dfeff795390b69905ceb63d6391b5b0dfe7Patch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/commit/faf99bf8a2b7b7562206fa047e8de652861e624aPatch, Third Party Advisory
• https://github.com/roundcube/roundcubemail/issues/8193Issue Tracking, Patch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/12/msg00004.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NDVGIZMQJ5IOM47Y3SAAJRN5VPANKTKO/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TP3Y5RXTUUOUODNG7HFEKWYNIPIT2NL4/
• https://www.debian.org/security/2021/dsa-5013Third Party Advisory

Published

Nov 19, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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