What is CVE-2021-44266?

CVE-2021-44266 is a medium-severity vulnerability in Gunet Open Eclass Platform, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-11.

How severe is CVE-2021-44266?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Gunet Open Eclass Platform

CVE-2021-44266

GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-06-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.010 (62.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000

Affected products

Gunet Open Eclass Platform

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

hg.gunet.gr/openeclass/rev/e0ed11f5768d (Exploit, Vendor Advisory)
docs.openeclass.org/el/current (Third Party Advisory, Release Notes)
emaragkos.gr/cve-2021-44266/ (Third Party Advisory)

Frequently asked questions

What is CVE-2021-44266?: CVE-2021-44266 is a medium-severity vulnerability in Gunet Open Eclass Platform, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-06-11.
How severe is CVE-2021-44266?: Medium severity. CVSS v3 base score is 6.1 out of 10.