Bug 2500063

Summary: CVE-2026-54433 roundcubemail: Roundcube Webmail: Arbitrary code execution via zero-click cross-site scripting [fedora-all]
Product: [Fedora] Fedora Reporter: Keith Grant <kgrant>
Component: roundcubemailAssignee: Remi Collet <fedora>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: urgent    
Version: rawhideCC: anon.amish, fedora, kevin, mhlavink, tm
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["427cecc1-d2de-4820-9b60-ca1562b9cb9a"]}
Fixed In Version: roundcubemail-1.7.2-1.fc44 roundcubemail-1.6.17-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-07-16 01:19:46 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2500059    

Description Keith Grant 2026-07-14 17:26:56 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, there is Stored Cross-Site Scripting (XSS) via a crafted plain-text email message. The attacker-controlled JavaScript executes within the victim's authenticated session simply by opening or previewing the message (zero-click).

Comment 1 Fedora Update System 2026-07-15 03:43:12 UTC
FEDORA-2026-c3351f4ae4 (roundcubemail-1.6.17-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-c3351f4ae4

Comment 2 Fedora Update System 2026-07-15 03:43:20 UTC
FEDORA-2026-517daa8d64 (roundcubemail-1.7.2-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-517daa8d64

Comment 3 Fedora Update System 2026-07-16 01:19:46 UTC
FEDORA-2026-517daa8d64 (roundcubemail-1.7.2-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2026-07-16 01:28:51 UTC
FEDORA-2026-c3351f4ae4 (roundcubemail-1.6.17-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.