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CVE-2018-20165

MediumPublished

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...

Published: Mar 22, 2019
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Aug 8, 2026

Primary CVSS

6.1/ 10Medium

nvd · CVSS 3.0

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS probability estimate

2.2%

Low · next 30 days

Percentile: 81.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

Reflected-XSS-on-Opentext-Portal-v7.4.4PoC
Proof-of-concept for reflected XSS (CVE-2018-20165) in OpenText Portal v7.4.4, demonstrating JavaScript injection via the vgnextoid URI parameter with HTML comment closing sequence.

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