CVE-2021-30083

Name: CVE-2021-30083
Creator: NVD / NIST
Published: 2021-05-24T18:15:08.117+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.84%

Last modified Jun 17, 2026

CVE-2021-30083 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. An issue was discovered in Mediat 1.4.1. There is a Reflected XSS vulnerability which allows remote attackers to inject arbitrary web script or HTML without authentication via the 'return' parameter in login.php.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

An issue was discovered in Mediat 1.4.1. There is a Reflected XSS vulnerability which allows remote attackers to inject arbitrary web script or HTML without authentication via the 'return' parameter in login.php.

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

0.84%

53.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Webfairy	Mediat	1.4.1

References

https://github.com/WebFairyNet/Mediat/issues/3Exploit, Issue Tracking, Third Party Advisory
https://github.com/WebFairyNet/Mediat/issues/3Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: May 24, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30083?

How severe is CVE-2021-30083?

CVE-2021-30083 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30083?

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-2021-30083?

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

Scan your code now

Source: NVD / NIST