What is CVE-2020-9012?

CVE-2020-9012 is a medium-severity vulnerability in Gluu Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-02-16.

How severe is CVE-2020-9012?

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

Is CVE-2020-9012 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Gluu Server

CVE-2020-9012

A cross-site scripting (XSS) vulnerability in the Import People functionality in Gluu Identity Configuration 4.0 allows remote attackers to inject arbitrary web script or HTML via the filename parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-02-16 · 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: 0.008 (54.2th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Gluu Server — versions 4.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

cloudbase-inc/go-pipeline

References

support.gluu.org/other/7992/reflected-cross-site-scripting-on-import-people/ (Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2020-9012?: CVE-2020-9012 is a medium-severity vulnerability in Gluu Server, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-02-16.
How severe is CVE-2020-9012?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-9012 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.