CVE-2020-23534

Name: CVE-2020-23534
Creator: NVD / NIST
Published: 2021-02-25T16:15:12.15+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.25%

Last modified Jun 17, 2026

CVE-2020-23534 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A server-side request forgery (SSRF) vulnerability in Upgrade.php of gopeak masterlab 2.1.5, via the 'source' parameter.. EPSS estimates a 1.25% chance of exploitation in the next 30 days.

Description

A server-side request forgery (SSRF) vulnerability in Upgrade.php of gopeak masterlab 2.1.5, via the 'source' parameter.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.25%

65.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-918

Affected Software

Vendor	Product	Versions
Masterlab	Masterlab	2.1.5

References

https://github.com/gopeak/masterlab/issues/254Exploit, Issue Tracking, Third Party Advisory
https://github.com/gopeak/masterlab/issues/254Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Feb 25, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-23534?

A server-side request forgery (SSRF) vulnerability in Upgrade.php of gopeak masterlab 2.1.5, via the 'source' parameter.

How severe is CVE-2020-23534?

CVE-2020-23534 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.25% probability of exploitation in the next 30 days.

How do I fix CVE-2020-23534?

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-2020-23534?

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

Scan your code now

Source: NVD / NIST