What is CVE-2023-5899?

CVE-2023-5899 is a high-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-11-01.

How severe is CVE-2023-5899?

High severity. CVSS v3 base score is 8.8 out of 10.

CSRF in Pkp Pkp/pkp-Lib

CVE-2023-5899

Cross-Site Request Forgery (CSRF) in GitHub repository pkp/pkp-lib prior to 3.3.0-16.

Vulnerability class: CSRF (Cross-Site Request Forgery)

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (16.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.4% 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

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

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

huntr.com/bounties/0c7f1981-3bba-4508-a07e-4cb9a2553216 (Exploit, Patch, Third Party Advisory)
github.com/pkp/pkp-lib/commit/04e0e0eaeacd5d754b2f39c42148b31f646113c5 (Patch)

Frequently asked questions

What is CVE-2023-5899?: CVE-2023-5899 is a high-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-11-01.
How severe is CVE-2023-5899?: High severity. CVSS v3 base score is 8.8 out of 10.