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CVE-2017-16651: Roundcube Webmail File Disclosure Vulnerability

criticalknown exploitedpublic exploitCVE-2017-16651
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Roundcube Webmail contains a file disclosure vulnerability caused by insufficient input validation in conjunction with file-based attachment plugins, which are used by default.

CSIRTS triage

vendor: Roundcubeproduct: Roundcube WebmailInformation disclosure
What
Roundcube Webmail contains a file disclosure vulnerability due to insufficient input validation.
Who is affected
Users of Roundcube Webmail.
Urgency
Immediate remediation is necessary due to the critical severity and active exploitation.
Action
Update Roundcube to the latest version to fix the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2021-11-03
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-16651

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2017-16651coverage & exploitation statusNVD · CVE.org

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