CVE-2021-44025

Name: CVE-2021-44025
Creator: NVD / NIST
Published: 2021-11-19T04:15:06.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 1.05%

Last modified Jun 17, 2026

CVE-2021-44025 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. 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.. EPSS estimates a 1.05% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS Probability

1.05%

59.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Roundcube	Webmail	< 1.3.17
Roundcube	Webmail	>= 1.4.0, < 1.4.12
Fedoraproject	Fedora	33
Fedoraproject	Fedora	34
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0

References

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

Timeline

Published: Nov 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is 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.

How severe is CVE-2021-44025?

CVE-2021-44025 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.05% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44025?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44025?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST