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CVE-2024-42010

53
FAUCET Score

CVE-2024-42010 describes an insufficient filtering vulnerability in mod_css_styles within Roundcube versions through 1.5.7 and 1.6.x through 1.6.7, allowing remote attackers to extract sensitive information via crafted CSS in rendered emails. This vulnerability carries a CVSS score of 7.5 (High), indicating a low attack complexity and no user interaction required for a remote attacker to achieve high confidentiality impact. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
N/AN/A
n/aCNA affected

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
52.81%
Probability of exploitation in next 30 days
EPSS Percentile
98.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.5281 is in the 98th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

ubuntupatch availablevia ubuntu_usn
Product: roundcube (bionic)Fixed in: 1.3.6+dfsg.1-1ubuntu0.1~esm8
ubuntupatch availablevia ubuntu_usn
Product: roundcube (focal)Fixed in: 1.4.3+dfsg.1-1ubuntu0.1~esm8
ubuntupatch availablevia ubuntu_usn
Product: roundcube (jammy)Fixed in: 1.5.0+dfsg.1-2ubuntu0.1~esm6
ubuntupatch availablevia ubuntu_usn
Product: roundcube (noble)Fixed in: 1.6.6+dfsg-2ubuntu0.1+esm3
ubuntupatch availablevia ubuntu_usn
Product: roundcube (xenial)Fixed in: 1.2~beta+dfsg.1-0ubuntu1+esm8

Vendor Advisories (1)

ubuntuUSN-8223-1

Roundcube Webmail vulnerabilities

Apr 29, 2026

References

github.com / roundcube/roundcubemail/releases
github.com / roundcube/roundcubemail/releases/tag/1.5.8
github.com / roundcube/roundcubemail/releases/tag/1.6.8
roundcube.net / news/2024/08/04/security-updates-1.6.8-and-1.5.8
sonarsource.com / blog/government-emails-at-risk-critical-cross-site-scripting-vulnerability-in-roundcube-webmail