What is CVE-2023-5896?

CVE-2023-5896 is a medium-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-01.

How severe is CVE-2023-5896?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Pkp Pkp/pkp-Lib

CVE-2023-5896

Cross-site Scripting (XSS) - Stored in GitHub repository pkp/pkp-lib prior to 3.4.0-4.

Vulnerability class: XSS (Cross-Site Scripting)

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

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 24.7% 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-79 — Cross-site Scripting

References

huntr.com/bounties/a1f05be5-24ed-4ec5-9858-fce4233f7bb1 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/pkp/pkp-lib/commit/18b318f83105ffa7fa214179f8e20507b0754236 (Patch)

Frequently asked questions

What is CVE-2023-5896?: CVE-2023-5896 is a medium-severity vulnerability in Pkp Pkp/pkp-Lib, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-11-01.
How severe is CVE-2023-5896?: Medium severity. CVSS v3 base score is 5.4 out of 10.