What is CVE-2023-5902?

CVE-2023-5902 is a medium-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-11-07.

How severe is CVE-2023-5902?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Pkp Pkp/pkp-Lib

CVE-2023-5902

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 2023-11-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (15.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 15th percentile — 15.3% 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
Sfu Pkp Web Application Library

Weakness classification (CWE)

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

References

huntr.com/bounties/8b93c7bf-5052-424a-85cc-7e5491c61f20 (Exploit, Third Party Advisory)
github.com/pkp/pkp-lib/commit/2d04e770d2bbbdd899fdec382fbf2a1d4a4ffec8 (Patch)

Frequently asked questions

What is CVE-2023-5902?: CVE-2023-5902 is a medium-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2023-11-07.
How severe is CVE-2023-5902?: Medium severity. CVSS v3 base score is 4.3 out of 10.