CVE-2023-32754: Thinking Software Efence login function has insufficient validation for user input

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-32754 is a critical-severity flaw (CVSS 9.8) affecting efence. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Thinking Software Efence login function has insufficient validation for user input. An unauthenticated remote attacker can exploit this vulnerability to inject arbitrary SQL commands to access, modify or delete database.

Why this priority

Critical severity
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	1.0% (top 36%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-06-16
Last modified	2026-06-17

Publisher (CNA): TWCERT/CC · Vendor: thinkingsoftware

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

Am I affected?

Timeline

2023-06-16 04:15 UTCPublished CVE record published
2026-06-17 05:59 UTCUpdated Record last modified

thinkingsoftware efence DOWNGRADE

Affected: 1.2.59 db_36

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.59

1. Check installed version

apt-cache policy efence || rpm -q efence || efence --version

2. No fixed release: DOWNGRADE to a release before 1.2.59 (Debian / Ubuntu)

apt-cache madison efence sudo apt install efence=<VERSION_BEFORE_1.2.59> sudo apt-mark hold efence

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

dnf --showduplicates list efence sudo dnf downgrade efence-<VERSION_BEFORE_1.2.59> sudo dnf versionlock add efence

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.

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-2023-32754?

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

Is CVE-2023-32754 being exploited?

CVE-2023-32754 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-2023-32754 affect?

CVE-2023-32754 affects efence. Severity is critical (CVSS 9.8). Thinking Software Efence login function has insufficient validation for user input. An unauthenticated remote attacker can exploit this vulnerability to inject arbitrary SQL commands to access, modify or delete database.

How urgent is CVE-2023-32754?

Priority 55/100. Critical severity; Remotely exploitable, no login, no user action

References

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