CVE-2019-18643

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-01-07 · updated 2026-06-17
Weakness: CWE-434

Description

Rock RMS versions before 8.10 and versions 9.0 through 9.3 fails to properly validate files uploaded in the application. The only protection mechanism is a file-extension blacklist that can be bypassed by adding multiple spaces and periods after the file name. This could allow an attacker to upload ASPX code and gain remote code execution on the application. The application typically runs as LocalSystem as mandated in the installation guide. Patched in versions 8.10 and 9.4.

Affected products

Sparkdevnetwork Rock Rms: before 8.10; from 9.0 before 9.4 — fixed in 8.10, 9.4

How to fix

Upgrade to a fixed version: Sparkdevnetwork Rock Rms 8.10, 9.4. Check the vendor advisory for mitigations.

References

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