What is CVE-2015-8314?

CVE-2015-8314 is a high-severity vulnerability in Heartcombo Devise, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2023-12-12.

How severe is CVE-2015-8314?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Heartcombo Devise

CVE-2015-8314

The Devise gem before 3.5.4 for Ruby mishandles Remember Me cookies for sessions, which may allow an adversary to obtain unauthorized persistent application access.

Published 2023-12-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.5% 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: 0.006 · change: 0.000

Affected products

Heartcombo Devise

Weakness classification (CWE)

CWE-312 — Cleartext Storage of Sensitive Information

References

rubysec.com/advisories/CVE-2015-8314/ (Third Party Advisory)
github.com/advisories/GHSA-746g-3gfp-hfhw (Patch, Third Party Advisory)
github.com/heartcombo/devise/commit/c92996646aba2d25b2c3e235fe0c4f1a84b70d24 (Patch)

Frequently asked questions

What is CVE-2015-8314?: CVE-2015-8314 is a high-severity vulnerability in Heartcombo Devise, classified under Cleartext Storage of Sensitive Information. CVSS score: 7.5/10. Published 2023-12-12.
How severe is CVE-2015-8314?: High severity. CVSS v3 base score is 7.5 out of 10.