Roundcube Webmail before 1.5.7 and 1.6.x before 1.6.7 allows XSS via SVG animate attributes.
Conclusion & alert: CVE-2024-37383 is rated Critical Active Threat (89.2/100): CVSS Medium severity, with high exploitation likelihood (EPSS 73.30%, 99th percentile). Core evidence: CISA KEV confirms active exploitation (added 2024-10-24) affecting Roundcube / Webmail. cross-site scripting (CWE-79) Unauthenticated remote administrative access may be possible. EPSS rose +9.27% over the last day, indicating growing attacker interest. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
: RoundCube Webmail Cross-Site Scripting (XSS) Vulnerability · CISA KEV detail
: 2024-10-24
: 2024-11-14
: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 52173 | exploit_db | edb | 2025-04-11 | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 64.03% | 73.30% | +9.27% |
| 2 | 2026-06-08 | 64.52% | 64.03% | -0.49% |
| 3 | 2026-05-26 | — | 64.52% | — |
Full EPSS history (44 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2024-37383 not yet assigned priority: Debian including 1 source packages (roundcube), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2024-37383 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2024-37383 |
ubuntu
|
high | CVE-2024-37383 high priority: Ubuntu including 1 source packages (roundcube), 10 status rows across 10 suites (bionic, focal, jammy, mantic, noble, oracular, plucky, questing, upstream, xenial): not-affected 5, released 5. | https://ubuntu.com/security/CVE-2024-37383 |
| URL | Tags |
|---|---|
| https://github.com/roundcube/roundcubemail/commit/43aaaa528646877789ec028d87924ba1accf5242 | Patch |
| https://github.com/roundcube/roundcubemail/releases/tag/1.5.7 | Release Notes |
| https://github.com/roundcube/roundcubemail/releases/tag/1.6.7 | Release Notes |
| https://lists.debian.org/debian-lts-announce/2024/06/msg00008.html | Mailing List Third Party Advisory |
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-37383 | US Government Resource |