What is CVE-2023-27261?

CVE-2023-27261 is a medium-severity vulnerability in Idattend Idweb, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2023-10-25.

How severe is CVE-2023-27261?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Auth bypass in Idattend Idweb

CVE-2023-27261

Missing authentication in the DeleteAssignments method in IDAttend’s IDWeb application 3.1.052 and earlier allows deletion of data by unauthenticated attackers.

Vulnerability class: Broken Authentication

Published 2023-10-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (42.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 42.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Idattend Idweb
Idattend Pty Ltd Idweb — versions 0

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

www.themissinglink.com.au/security-advisories/cve-2023-27261 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-27261?: CVE-2023-27261 is a medium-severity vulnerability in Idattend Idweb, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2023-10-25.
How severe is CVE-2023-27261?: Medium severity. CVSS v3 base score is 5.3 out of 10.