What is CVE-2021-28376?

CVE-2021-28376 is a low-severity vulnerability in Chronoengine Chronoforums, classified under Path Traversal. CVSS score: 2.7/10. Published 2022-01-12.

How severe is CVE-2021-28376?

Low severity. CVSS v3 base score is 2.7 out of 10.

Path Traversal in Chronoengine Chronoforums

CVE-2021-28376

ChronoForms 7.0.7 allows fname Directory Traversal to read arbitrary files.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2022-01-12 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 2.7 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (63.8th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

Chronoengine Chronoforums — versions 7.0.7

Weakness classification (CWE)

CWE-22 — Path Traversal

References

herolab.usd.de/en/security-advisories/usd-2021-0006 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-28376?: CVE-2021-28376 is a low-severity vulnerability in Chronoengine Chronoforums, classified under Path Traversal. CVSS score: 2.7/10. Published 2022-01-12.
How severe is CVE-2021-28376?: Low severity. CVSS v3 base score is 2.7 out of 10.