Skip to content
Fencer Vulns
medium 6.1

CVE-2021-44025 json

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…

published 2021-11-19 4 y ago modified 2026-06-17 4 mo ago also BIT-roundcube-2021-44025 , EUVD-2021-30884

cvss
6.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 68%
public exploits
0
none known

Summary

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.

Patch / fix

  • bitnami roundcube 1.3.17, 1.4.12
  • roundcube webmail 1.3.17, 1.4.12
  • roundcube Debian 14, Debian 13, Debian 12 1.5.0+dfsg.1-1

debian advisories DEBIAN-CVE-2021-44025

  • roundcube Ubuntu Pro 16.04 LTS 1.2~beta+dfsg.1-0ubuntu1+esm2
  • roundcube Ubuntu Pro 18.04 LTS 1.3.6+dfsg.1-1ubuntu0.1~esm2
  • roundcube Ubuntu Pro 20.04 LTS 1.4.3+dfsg.1-1ubuntu0.1~esm2

ubuntu advisories UBUNTU-CVE-2021-44025

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-44025 updated cvss 7.5

roundcubemail: XSS in handling an attachment's filename extension

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.21% chance of exploitation in the next 30 days, higher than 68% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
OSV 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
bitnami roundcube
<1.3.17
>=1.4.0, <1.4.12
1.3.17
1.4.12

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.