9.3

CVE-2024-42008: roundcube webmail Cross-site Scripting

CVSS: 9.3v3.1CriticalModified
AliasesUBUNTU-CVE-2024-42008DEBIAN-CVE-2024-42008
Published 05-08-2024Last modified 13-03-2025
Open JSON

Vulnerability summary

CVE-2024-42008 is a critical (CVSS 9.3) Cross-site Scripting vulnerability in roundcube webmail. EPSS estimates a 34.21% chance of exploitation in the next 30 days, higher than 98.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
Critical · v3.1 (CVE.org)
EPSS score
34.21%
0%100%
High · -1.70 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 5 · Related 3
DSA-5743-1DSA-5743-2MGASA-2024-0279OPENSUSE-SU-2024:0328-1OPENSUSE-SU-2024:14243-1USN-8223-1

Timeline

  1. 05-08-2024
    PublishedVulnerability first disclosed.
  2. 13-03-2025
    Last modifiedVulnerability information updated.

Description

A Cross-Site Scripting vulnerability in rcmail_action_mail_get->run() in Roundcube through 1.5.7 and 1.6.x through 1.6.7 allows a remote attacker to steal and send emails of a victim via a malicious e-mail attachment served with a dangerous Content-Type header.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

34.21%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

-1.70 pp

From 35.90% on 20-09-2026

20-09-202620-10-2026
EPSS score
34.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • roundcube< 1.6.5+dfsg-1+deb12u3 | < 1.6.8+dfsg-1
Roundcube1 product
  • webmail< 1.5.8 | ≥ 1.6.0, < 1.6.8
Ubuntu1 product
  • roundcube< 1.5.0+dfsg.1-2ubuntu0.1~esm6 | < 1.6.6+dfsg-2ubuntu0.1+esm3

3 vendors · 3 products

References

10 links