Path Traversal in Icc0rz H5p

CVE-2026-57321

Contributor Arbitrary File Deletion in H5P <= 1.17.7 versions.

Vulnerability class: Path Traversal (Directory Traversal)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.004 (32.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-57321: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-57321?
CVE-2026-57321 is a high-severity vulnerability in Icc0rz H5p, classified under Path Traversal. CVSS score: 7.1/10. Published 2026-06-26.
How severe is CVE-2026-57321?
High severity. CVSS v3 base score is 7.1 out of 10.