What is CVE-2026-52703?

CVE-2026-52703 is a critical-severity vulnerability in Ninja Team Fastdup, classified under Path Traversal: '.../...//'. CVSS score: 9.6/10. Published 2026-06-15.

How severe is CVE-2026-52703?

Critical severity. CVSS v3 base score is 9.6 out of 10.

Path Traversal in Ninja Team Fastdup

CVE-2026-52703

Unauthenticated Path Traversal in FastDup <= 2.7.2 versions.

Published 2026-06-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.005 (40.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001

Affected products

Ninja Team Fastdup

Weakness classification (CWE)

CWE-35 — Path Traversal: '.../...//'

References

patchstack.com/database/wordpress/plugin/fastdup/vulnerability/wordpress-fastdu… (vdb-entry)

Frequently asked questions

What is CVE-2026-52703?: CVE-2026-52703 is a critical-severity vulnerability in Ninja Team Fastdup, classified under Path Traversal: '.../...//'. CVSS score: 9.6/10. Published 2026-06-15.
How severe is CVE-2026-52703?: Critical severity. CVSS v3 base score is 9.6 out of 10.