What is CVE-2023-5889?

CVE-2023-5889 is a high-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Insufficient Session Expiration. CVSS score: 8.2/10. Published 2023-11-01.

How severe is CVE-2023-5889?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Pkp Pkp/pkp-Lib

CVE-2023-5889

Insufficient Session Expiration in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

Published 2023-11-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (35.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Pkp Pkp/pkp-Lib — versions unspecified
Pkp Web Application Library

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

huntr.com/bounties/fba2991a-1b8a-4c89-9689-d708526928e1 (Exploit, Patch, Third Party Advisory)
github.com/pkp/pkp-lib/commit/32d071ef2090fc336bc17d56a86d1dff90c26f0b (Patch)

Frequently asked questions

What is CVE-2023-5889?: CVE-2023-5889 is a high-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Insufficient Session Expiration. CVSS score: 8.2/10. Published 2023-11-01.
How severe is CVE-2023-5889?: High severity. CVSS v3 base score is 8.2 out of 10.