What is CVE-2023-4560?

CVE-2023-4560 is a medium-severity vulnerability in Omeka Omeka/omeka-S, classified under CWE-612. CVSS score: 6.5/10. Published 2023-08-28.

How severe is CVE-2023-4560?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Omeka Omeka/omeka-S

CVE-2023-4560

Improper Authorization of Index Containing Sensitive Information in GitHub repository omeka/omeka-s prior to 4.0.4.

Published 2023-08-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.8th percentile), scored 2026-09-27.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 51.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.001

Affected products

Omeka Omeka/omeka-S — versions unspecified
Omeka S

Weakness classification (CWE)

CWE-612

References

huntr.dev/bounties/86f06e28-ed8d-4f96-b4ad-e47f2fe94ba6 (Exploit, Patch, Third Party Advisory)
github.com/omeka/omeka-s/commit/b3d8871f22e50ff96a7070fd0be18a0df7b6cbe7 (Patch)

Frequently asked questions

What is CVE-2023-4560?: CVE-2023-4560 is a medium-severity vulnerability in Omeka Omeka/omeka-S, classified under CWE-612. CVSS score: 6.5/10. Published 2023-08-28.
How severe is CVE-2023-4560?: Medium severity. CVSS v3 base score is 6.5 out of 10.