CVE-2024-42009
Actively exploited. CVE-2024-42009 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-06-09) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2024-42009 is indexed in GitHub PoC and Nuclei. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
On August 4, 2024, Roundcube released patches for critical vulnerabilities CVE-2024-42008 and CVE-2024-42009 affecting its email server. These vulnerabilities allow for indirect remote code injections (XSS) that can, for example, lead to the retrieval of...
CSIRTS triage
- What
- Roundcube has critical vulnerabilities that allow for indirect remote code injections (XSS).
- Who is affected
- Deployments of Roundcube email server are affected by these vulnerabilities.
- Urgency
- Remediation is urgent due to confirmed exploitation and the critical nature of the vulnerabilities.
- Action
- Users should apply the patches released on August 4, 2024.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99.6% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2024-42009 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
- NucleiA nuclei-templates detection/PoC template exists for this CVE.look it up ↗
Advisory coverage (3)
- criticalexploitedAL25-007 - Vulnerability impacting Roundcube Webmail – CVE-2025-49113 – Update 1cccs · 2026-07-10
- criticalexploitedCVE-2024-42009: RoundCube Webmail Cross-Site Scripting Vulnerabilitycisa-kev · 2025-06-09
- unknownexploitedMultiple vulnerabilities in Roundcube (August 9, 2024)cert-fr-alerte · 2024-08-09
External references
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