Read the docs
TI-2023-05182 Aliases CVE-2023-5631GHSA-qf8f-27cp-gw76

Stored XSS vulnerability in Roundcube

Priority CRITICAL 86Exploited in the wildCWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Roundcube before 1.4.15, 1.5.x before 1.5.5, and 1.6.x before 1.6.4 allows stored XSS via an HTML e-mail message with a crafted SVG document because of program/lib/Roundcube/rcube_washtml.php behavior. This could allow a remote attacker to load arbitrary JavaScript code.

Why it matters now

Exploitation Active In CISA KEV since 2023-10-26CISA due date 2023-11-16
EPSS 0.76337 99th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Roundcubemail (Roundcube): 1.6.3, 1.5.4, 1.5.14 +3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
RoundcubeRoundcubemail1.6.0 to before 1.6.3; 1.5.0 to before 1.5.4; 1.4.0 to before 1.5.141.6.3, 1.5.4, 1.5.14, 1.6.4, 1.5.5, 1.5.15Patch availableCNA
  • Roundcubemail VendorRoundcube Affected 1.6.0 to before 1.6.3; 1.5.0 to before 1.5.4; 1.4.0 to before 1.5.14 Fixed in 1.6.3, 1.5.4, 1.5.14, 1.6.4, 1.5.5, 1.5.15 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*before 1.4.15; 1.5.0 to before 1.5.5; 1.6.0 to before 1.6.4VulnerableRoundcube
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*12.0VulnerableDebian
cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*39VulnerableFedoraproject
  • cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:* Versions before 1.4.15; 1.5.0 to before 1.5.5; 1.6.0 to before 1.6.4 Vulnerable ·Roundcube
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:* Versions 12.0 Vulnerable ·Debian
  • cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:* Versions 39 Vulnerable ·Fedoraproject

Remediation

  • Fix · CNA Roundcubemail (Roundcube) Fixed in 1.6.3, 1.5.4, 1.5.14, 1.6.4, 1.5.5, 1.5.15

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2023-10-26 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2023-5631
  3. 2026-10-03 Alias added: GHSA-qf8f-27cp-gw76

References

  • TI-2025-31204 Deserialization of untrusted data in Roundcube Webmail KEVCVSS 3.1CRITICAL 9.9
  • TI-2021-19778 Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params. KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-10051 rcube_image.php in Roundcube Webmail before 1.4.4 allows attackers to execute arbitrary… KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-28025 A Cross-Site Scripting vulnerability in Roundcube through 1.5.7 and 1.6.x through 1.6.7… KEVCVSS 3.1CRITICAL 9.3
  • TI-2017-12250 Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows… KEVCVSS 3.1HIGH 7.8
  • TI-2025-41994 Cross-site scripting in Roundcube Webmail KEVCVSS 3.1HIGH 7.2
See all 112 →

Sources