CVE-2026-54432
An attacker can exploit multiple vulnerabilities in Roundcube to bypass security measures, cause denial-of-service attacks, perform cross-site scripting attacks, and manipulate or disclose data.
CSIRTS triage
- What
- Multiple vulnerabilities in Roundcube can be exploited to bypass security measures, cause denial-of-service attacks, perform cross-site scripting attacks, and manipulate or disclose data.
- Who is affected
- Deployments of Roundcube are affected by these vulnerabilities.
- Urgency
- Remediation is medium priority as the vulnerabilities are not currently exploited but could lead to significant issues if left unaddressed.
- Action
- Update to the latest version of Roundcube to mitigate these vulnerabilities.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.22% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 13% of all EPSS-scored CVEs.
Advisory coverage (4)
- medium[NEW] [medium] Roundcube: Multiple vulnerabilitiescert-bund · 2026-08-06
- unknownDSA-6391-1 roundcube - security updatedebian · 2026-07-19
- mediumCVE-2026-54432: Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2 allows Stored Cross-Site Scripting (XSS…nvd · 2026-07-14
- unknownMultiple vulnerabilities in Roundcube (July 6, 2026)cert-fr-avis · 2026-07-06
External references
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[](https://www.csirts.com/cve/CVE-2026-54432)