PKP-WAL (aka PKP Web Application Library or pkp-lib) before 3.3.0-16, as used in Open Journal Systems (OJS) and other products, does not verify that the file named in an XML document (used for the native import/export plugin) is an image file, before trying to use it for an issue cover image.
Conclusion & alert: CVE-2023-47271 is rated Low Risk (37.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.62%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.12% | 0.62% | +0.49% |
| 2 | 2026-02-21 | 0.15% | 0.12% | -0.03% |
| 3 | 2025-11-23 | — | 0.15% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| sfu | pkp_web_application_library | < 3.3.0-16 | cpe:2.3:a:sfu:pkp_web_application_library:*:*:*:*:*:*:*:* |