CVE-2020-11546

Name: CVE-2020-11546
Creator: NVD / NIST
Published: 2020-07-14T20:15:11.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 31.73%

Last modified Jun 17, 2026

CVE-2020-11546 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php. An unauthenticated remote attacker can exploit this behavior to execute arbitrary PHP code via Code Injection.. EPSS estimates a 31.73% chance of exploitation in the next 30 days.

Description

SuperWebMailer 7.21.0.01526 is susceptible to a remote code execution vulnerability in the Language parameter of mailingupgrade.php. An unauthenticated remote attacker can exploit this behavior to execute arbitrary PHP code via Code Injection.

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

31.73%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Superwebmailer	Superwebmailer	< 7.40.0.01550

References

https://blog.to.com/advisory-superwebmailer-cve-2020-11546/Exploit, Third Party Advisory
https://blog.to.com/advisory-superwebmailer-cve-2020-11546/Exploit, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2020-11546?

How severe is CVE-2020-11546?

CVE-2020-11546 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 31.73% probability of exploitation in the next 30 days.

How do I fix CVE-2020-11546?

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-2020-11546?

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

Scan your code now

Source: NVD / NIST