Roundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability

Summary

CVECVE-2023-5631
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-10-18 15:15:00 UTC
Updated2023-11-17 15:15:00 UTC
DescriptionRoundcube 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.

Risk And Classification

EPSS: 0.833380000 probability, percentile 0.992660000 (date 2026-04-02)

CISA KEV: Listed on 2023-10-26; due 2023-11-16; ransomware use Unknown

Problem Types: CWE-79

CISA Known Exploited Vulnerability

VendorRoundcube
ProductWebmail
NameRoundcube Webmail Persistent Cross-Site Scripting (XSS) Vulnerability
Required ActionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Noteshttps://roundcube.net/news/2023/10/16/security-update-1.6.4-released, https://roundcube.net/news/2023/10/16/security-updates-1.5.5-and-1.4.15 ; https://nvd.nist.gov/vuln/detail/CVE-2023-5631

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Debian Debian Linux 12.0 All All All
Application Roundcube Webmail All All All All

References

ReferenceSourceLinkTags
XSS with svg use tag on RC 1.5.3 · Issue #9168 · roundcube/roundcubemail · GitHub MISC github.com
Release Roundcube Webmail 1.6.4 · roundcube/roundcubemail · GitHub MISC github.com
Debian -- Security Information -- DSA-5531-1 roundcube MISC www.debian.org
#1054079 - roundcube: CVE-2023-5631: cross-site scripting (XSS) vulnerability in handling of SVG in HTML messages - Debian Bug report logs MISC bugs.debian.org
oss-security - CVE-2023-5631: XSS vulnerability in Roundcube webmail MISC www.openwall.com
Fix cross-site scripting (XSS) vulnerability in handling of SVG in HT… · roundcube/roundcubemail@6ee6e7a · GitHub MISC github.com
Fix cross-site scripting (XSS) vulnerability in handling of SVG in HT… · roundcube/roundcubemail@41756cc · GitHub MISC github.com
Security update 1.6.4 released MISC roundcube.net
[SECURITY] [DLA 3630-1] roundcube security update MISC lists.debian.org
Security updates 1.5.5 and 1.4.15 released MISC roundcube.net
oss-security - CVE-2023-37580 (and others): XSS vulnerabilities in Zimbra Collaboration Suite www.openwall.com
oss-security - Re: CVE-2023-5631: XSS vulnerability in Roundcube webmail MISC www.openwall.com
Release Roundcube Webmail 1.5.5 · roundcube/roundcubemail · GitHub MISC github.com
Release Roundcube Webmail 1.4.15 · roundcube/roundcubemail · GitHub MISC github.com
[SECURITY] Fedora 39 Update: roundcubemail-1.6.4-1.fc39 - package-announce - Fedora Mailing-Lists MISC lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 285195 Fedora Security Update for roundcubemail (FEDORA-2023-735ee6d4e1)
  • 6000269 Debian Security Update for roundcube (DLA 3630-1)
  • 6000308 Debian Security Update for roundcube (DSA 5531-1)
  • 730959 Roundcube Webmail SVG Document Persistent Cross-Site Scripting (XSS) Vulnerability
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