CVE-2020-5781

Name: CVE-2020-5781
Creator: NVD / NIST
Published: 2020-09-23T16:15:13.9+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.90%

Last modified Jun 17, 2026

CVE-2020-5781 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. In IgniteNet HeliOS GLinq v2.2.1 r2961, the langSelection parameter is stored in the luci configuration file (/etc/config/luci) by the authenticator.htmlauth function. When modified with arbitrary javascript, this causes a denial-of-service condition for all other users.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.

Description

In IgniteNet HeliOS GLinq v2.2.1 r2961, the langSelection parameter is stored in the luci configuration file (/etc/config/luci) by the authenticator.htmlauth function. When modified with arbitrary javascript, this causes a denial-of-service condition for all other users.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.90%

55.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions	Update
Ignitenet	Helios Glinq	2.2.1	R2961

References

https://www.tenable.com/security/research/tra-2020-55Exploit, Third Party Advisory
https://www.tenable.com/security/research/tra-2020-55Exploit, Third Party Advisory

Timeline

Published: Sep 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-5781?

How severe is CVE-2020-5781?

CVE-2020-5781 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.

How do I fix CVE-2020-5781?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5781?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST