CVE-2023-39415

Name: CVE-2023-39415
Creator: NVD / NIST
Published: 2023-08-18T10:15:11.62+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2023-39415 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Improper authentication vulnerability in Proself Enterprise/Standard Edition Ver5.61 and earlier, Proself Gateway Edition Ver1.62 and earlier, and Proself Mail Sanitize Edition Ver1.07 and earlier allow a remote unauthenticated attacker to log in to the product's Control Panel and perform an unintended operation.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

Improper authentication vulnerability in Proself Enterprise/Standard Edition Ver5.61 and earlier, Proself Gateway Edition Ver1.62 and earlier, and Proself Mail Sanitize Edition Ver1.07 and earlier allow a remote unauthenticated attacker to log in to the product's Control Panel and perform an unintended operation.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.76%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Northgrid	Proself	<= 1.07
Northgrid	Proself	<= 1.62
Northgrid	Proself	<= 5.61

References

https://jvn.jp/en/jp/JVN19661362/Third Party Advisory
https://www.proself.jp/information/149/Vendor Advisory
https://www.proself.jp/information/150/Vendor Advisory
https://jvn.jp/en/jp/JVN19661362/Third Party Advisory
https://www.proself.jp/information/149/Vendor Advisory
https://www.proself.jp/information/150/Vendor Advisory

Timeline

Published: Aug 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-39415?

How severe is CVE-2023-39415?

CVE-2023-39415 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2023-39415?

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-2023-39415?

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

Scan your code now

Source: NVD / NIST