CVE-2018-16659: An issue was discovered in Rausoft ID.prove 2.95

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2018-16659 is a critical-severity flaw (CVSS 9.8) affecting id.prove. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Rausoft ID.prove 2.95. The login page allows SQL injection via Microsoft SQL Server stacked queries in the Username POST parameter. Hypothetically, an attacker can utilize master..xp_cmdshell for the further privilege elevation.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.7% (top 14%)
CISA exploited list	No
Weakness	CWE-89
Published	2018-09-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rausoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-09-28 00:29 UTCPublished CVE record published
2026-06-17 01:44 UTCUpdated Record last modified

rausoft id.prove DOWNGRADE

Affected: 2.95

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.95

1. Check installed version

apt-cache policy id.prove || rpm -q id.prove || id.prove --version

2. No fixed release: DOWNGRADE to a release before 2.95 (Debian / Ubuntu)

apt-cache madison id.prove sudo apt install id.prove=<VERSION_BEFORE_2.95> sudo apt-mark hold id.prove

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list id.prove sudo dnf downgrade id.prove-<VERSION_BEFORE_2.95> sudo dnf versionlock add id.prove

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Rausoft ID.prove 2.95 - 'Username' SQL injection

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-16659?

id.prove: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-16659 being exploited?

CVE-2018-16659 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-16659 affect?

CVE-2018-16659 affects id.prove. Severity is critical (CVSS 9.8). An issue was discovered in Rausoft ID.prove 2.95. The login page allows SQL injection via Microsoft SQL Server stacked queries in the Username POST parameter. Hypothetically, an attacker can utilize master..xp_cmdshell for the further privi

How urgent is CVE-2018-16659?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Microsoft SQL Server vulnerabilities

References

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