# CVE-2026-54432: roundcube: Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS)

CVE-2026-54432 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-54432, released July 8, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-54432
- Priority: Routine
- CVSS: 4.7 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 14, 2026

## Description

Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS). The issue occurs because the attachment MIME type is not properly escaped on the attachment-validation warning page.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | roundcube Debian 12.15 (bookworm) | 1.6.5+dfsg-1+deb12u10 | [DEBIAN-CVE-2026-54432](https://patchblox.com/security/data/fix/linux/debian-cve-2026-54432.md) | Jul 8, 2026 |
| Linux | roundcube Debian 13.5 (trixie) | 1.6.17+dfsg-0+deb13u1 | [DEBIAN-CVE-2026-54432](https://patchblox.com/security/data/fix/linux/debian-cve-2026-54432.md) | Jul 8, 2026 |
| Linux | roundcube Debian 14 | 1.6.17+dfsg-1 | [DEBIAN-CVE-2026-54432](https://patchblox.com/security/data/fix/linux/debian-cve-2026-54432.md) | Jul 8, 2026 |
| Linux | roundcubemail opensuse-leap 16.0 | 1.6.20-bp160.1.1 | [OPENSUSE-SU-2026:22195-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-22195-1.md) | Nov 7, 2026 |

---

Data as of 2026-11-09T07:25:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.