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Vulnerability record · CVE-2023-39415 · published 18 August 2023

CVE-2023-39415: Northgrid proself improper authentication vulnerability

Northgrid · Proself

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.

7.5 CVSS 3.1 High EPSS 1.0% · top 37.6% CWE-287 · Improper authentication
7.5CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-39415), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.