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Fencer Vulns
high 7.5

CVE-2024-42010 in the critical feed json

mod_css_styles in Roundcube through 1.5.7 and 1.6.x through 1.6.7 insufficiently filters Cascading Style Sheets (CSS) token sequences in re…

published 2024-08-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-39392

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
66.7%
EPSS 66.7% chance of exploitation in 30 days, percentile 99.2%
public exploits
0
none known

Summary

mod_css_styles in Roundcube through 1.5.7 and 1.6.x through 1.6.7 insufficiently filters Cascading Style Sheets (CSS) token sequences in rendered e-mail messages, allowing a remote attacker to obtain sensitive information.

Patch / fix

  • roundcube roundcube 1.5.8, 1.6.8
  • roundcube webmail 1.5.8, 1.6.8
  • roundcube Debian 12 1.6.5+dfsg-1+deb12u3
  • roundcube Debian 14, Debian 13 1.6.8+dfsg-1

debian advisories DEBIAN-CVE-2024-42010

  • roundcube Ubuntu Pro 16.04 LTS 1.2~beta+dfsg.1-0ubuntu1+esm8
  • roundcube Ubuntu Pro 18.04 LTS 1.3.6+dfsg.1-1ubuntu0.1~esm8
  • roundcube Ubuntu Pro 20.04 LTS 1.4.3+dfsg.1-1ubuntu0.1~esm8
  • roundcube Ubuntu Pro 22.04 LTS 1.5.0+dfsg.1-2ubuntu0.1~esm6
  • roundcube Ubuntu Pro 24.04 LTS 1.6.6+dfsg-2ubuntu0.1+esm3

ubuntu advisories UBUNTU-CVE-2024-42010

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

  • roundcubemail Package Hub 15 SP6, Package Hub 15 SP5, openSUSE Leap 15.6 +1 more 1.6.8-bp156.2.3.1
  • roundcubemail openSUSE Tumbleweed 1.6.8-1.1

opensuse advisories openSUSE-SU-2024:0328-1openSUSE-SU-2024:14243-1

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-2024-42010 updated cvss 5.3

roundcubemail: information leak due to insufficient CSS filtering

  • 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

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

66.66% chance of exploitation in the next 30 days, higher than 99.2% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • roundcube roundcube

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.