CVE-2023-51507: Missing Authorization vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey M

Q: How do I fix CVE-2023-51507?

quiz and survey master: upgrade to 8.1.17. Exact commands for each OS are on this page.

Q: Is CVE-2023-51507 being exploited?

CVE-2023-51507 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-51507 affect?

CVE-2023-51507 affects quiz and survey master. Severity is medium (CVSS 5.3). Missing Authorization vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.16.

Q: How urgent is CVE-2023-51507?

Priority 30/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2023-51507 is a medium-severity flaw (CVSS 5.3) affecting quiz and survey master. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Missing Authorization vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.16.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-862
Published	2024-06-14
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: expresstech

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

Am I affected?

Timeline

2024-06-14 02:15 UTCPublished CVE record published
2026-06-17 06:41 UTCUpdated Record last modified

expresstech quiz and survey master UPGRADE

Affected: < 8.1.17

Fixed in: 8.1.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy quiz-and-survey-master || rpm -q quiz-and-survey-master || quiz-and-survey-master --version

2. UPGRADE to 8.1.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade quiz-and-survey-master

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade quiz-and-survey-master

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2023-51507?

quiz and survey master: upgrade to 8.1.17. Exact commands for each OS are on this page.

Is CVE-2023-51507 being exploited?

CVE-2023-51507 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-2023-51507 affect?

CVE-2023-51507 affects quiz and survey master. Severity is medium (CVSS 5.3). Missing Authorization vulnerability in ExpressTech Quiz And Survey Master.This issue affects Quiz And Survey Master: from n/a through 8.1.16.

How urgent is CVE-2023-51507?

Priority 30/100. Remotely exploitable, no login, no user action

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References

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