What is CVE-2023-5626?

CVE-2023-5626 is a high-severity vulnerability in Pkp Pkp/ojs, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-10-18.

How severe is CVE-2023-5626?

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

CSRF in Pkp Pkp/ojs

CVE-2023-5626

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

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2023-10-18 · 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 2026-09-28.

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/ojs — versions unspecified
Sfu Open Journal System

Weakness classification (CWE)

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

References

huntr.dev/bounties/c99279c1-709a-4e7b-a042-010c2bb44d6b (Exploit, Patch, Third Party Advisory)
github.com/pkp/ojs/commit/99a9f393190383454aa5ddffedffc89596f6c682 (Patch)

Frequently asked questions

What is CVE-2023-5626?: CVE-2023-5626 is a high-severity vulnerability in Pkp Pkp/ojs, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.8/10. Published 2023-10-18.
How severe is CVE-2023-5626?: High severity. CVSS v3 base score is 8.8 out of 10.