CVE-2020-21845

Name: CVE-2020-21845
Creator: NVD / NIST
Published: 2020-09-14T18:15:11.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.83%

Last modified Jun 17, 2026

CVE-2020-21845 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Codoforum 4.8.3 allows HTML Injection in the 'admin dashboard Manage users Section.'. EPSS estimates a 0.83% chance of exploitation in the next 30 days.

Description

Codoforum 4.8.3 allows HTML Injection in the 'admin dashboard Manage users Section.'

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.83%

52.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Codoforum	Codoforum	4.8.3

References

https://codoforum.com/Vendor Advisory
https://vyshnavvizz.blogspot.com/2020/01/html-injection-in-codoforum-v483.htmlExploit, Third Party Advisory
https://codoforum.com/Vendor Advisory
https://vyshnavvizz.blogspot.com/2020/01/html-injection-in-codoforum-v483.htmlExploit, Third Party Advisory

Timeline

Published: Sep 14, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-21845?

Codoforum 4.8.3 allows HTML Injection in the 'admin dashboard Manage users Section.'

How severe is CVE-2020-21845?

CVE-2020-21845 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.83% probability of exploitation in the next 30 days.

How do I fix CVE-2020-21845?

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-2020-21845?

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

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Source: NVD / NIST