What is CVE-2018-20165?

CVE-2018-20165 is a medium-severity vulnerability in Opentext Portal, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-03-22.

How severe is CVE-2018-20165?

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

Is CVE-2018-20165 known to be exploited?

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

XSS in Opentext Portal

CVE-2018-20165

Cross-site scripting (XSS) vulnerability in OpenText Portal 7.4.4 allows remote attackers to inject arbitrary web script or HTML via the vgnextoid parameter to a menuitem URI.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2019-03-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.015 (73.6th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

Opentext Portal — versions 7.4.4

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/hect0rS/Reflected-XSS-on-Opentext-Portal-v7.4.4/blob/master/readme.md (Third Party Advisory)

Frequently asked questions

What is CVE-2018-20165?: CVE-2018-20165 is a medium-severity vulnerability in Opentext Portal, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2019-03-22.
How severe is CVE-2018-20165?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2018-20165 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.