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01 Record

CVE-2023-51507

WordPress Quiz And Survey Master plugin <= 8.1.16 - Broken Access Control vulnerability

MediumPUBLISHEDCNA: Patchstack
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

02 Description

WordPress Quiz And Survey Master plugin <= 8.1.16 - Broken Access Control vulnerability

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.31% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 23.9% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2024-06-14 01:01Z2 YR AGO
Last updated
2026-04-28 16:09Z6 MO AGO
Reserved
2023-12-20
Assigning CNA
Patchstack
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weaknesses
Data version
5.2
Document digest
c161f3d9ed0da247f31c693ad689a82426ba142eadfc314a63c0578b304e1def

05 Affected products

VendorProductVersionsPlatforms
ExpressTechQuiz And Survey Master<= 8.1.16—
expresstechquiz_and_survey_master0 to 8.1.16—

06 References

07 Remediation

Update to 8.1.17 or a higher version.