What is CVE-2023-4654?

CVE-2023-4654 is a low-severity vulnerability in Instantcms, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 3.5/10. Published 2023-08-31.

How severe is CVE-2023-4654?

Low severity. CVSS v3 base score is 3.5 out of 10.

Vulnerability in Instantcms

CVE-2023-4654

Sensitive Cookie in HTTPS Session Without 'Secure' Attribute in GitHub repository instantsoft/icms2 prior to 2.16.1.

Published 2023-08-31 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Instantcms
Instantsoft Instantsoft/icms2 — versions unspecified

Weakness classification (CWE)

CWE-614 — Sensitive Cookie in HTTPS Session Without 'Secure' Attribute

References

huntr.dev/bounties/56432a75-af43-4b1a-9307-bd8de568351b (Exploit, Patch, Third Party Advisory)
github.com/instantsoft/icms2/commit/ca5f150da11d9caae86638885137afe35bcc3592 (Patch)

Frequently asked questions

What is CVE-2023-4654?: CVE-2023-4654 is a low-severity vulnerability in Instantcms, classified under Sensitive Cookie in HTTPS Session Without 'Secure' Attribute. CVSS score: 3.5/10. Published 2023-08-31.
How severe is CVE-2023-4654?: Low severity. CVSS v3 base score is 3.5 out of 10.