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CVE-2019-8394: Zoho ManageEngine ServiceDesk Plus (SDP) File Upload Vulnerability

criticalknown exploitedpublic exploitCVE-2019-8394
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.
Zoho ManageEngine ServiceDesk Plus (SDP) contains an unspecified vulnerability that allows remote users to upload files via login page customization.

CSIRTS triage

vendor: Zohoproduct: ManageEngine ServiceDesk Plus (SDP)Other
What
The vulnerability allows remote users to upload files via login page customization.
Who is affected
Deployments of Zoho ManageEngine ServiceDesk Plus (SDP).
Urgency
Remediation is urgent as the vulnerability is actively exploited and critical.
Action
Apply the latest security updates for ServiceDesk Plus.

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-2019-8394

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-2019-8394coverage & exploitation statusNVD · CVE.org

Recent advisories for Zoho ManageEngine ServiceDesk

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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