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Vulnerability record · CVE-2020-23356 · published 27 January 2021

CVE-2020-23356: Nibbleblog vulnerability

Nibbleblog · Nibbleblog

dmin/kernel/api/login.class.phpin in nibbleblog v3.7.1c allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.

7.5 CVSS 3.1 High EPSS 0.98% · top 39.4%
7.5CVSS 3.1 base score, v2 5.0
0.98%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

dmin/kernel/api/login.class.phpin in nibbleblog v3.7.1c allows type juggling for login bypass because == is used instead of === for password hashes, which mishandles hashes that begin with 0e followed by exclusively numerical characters.

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

Affected products

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

References

LinkTags
https://github.com/dignajar/nibbleblog/pull/148 Third Party Advisory
https://github.com/dignajar/nibbleblog/pull/148 Third Party Advisory

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Related vulnerabilities

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

9.8CVE-2019-7719Nibbleblog code injection vulnerabilityNibbleblog 4.0.5 allows eval injection by placing PHP code in the install.php username parameter and then making a content/private/shadow.php request.EPSS 1.7%7.2CVE-2018-16604Nibbleblog code injection vulnerabilityAn issue was discovered in Nibbleblog v4.0.5. With an admin's username and password, an attacker can execute arbitrary PHP code by changing the usern…EPSS 1.5%6.8CVE-2015-6966Nibbleblog cross-site request forgery vulnerabilityMultiple cross-site request forgery (CSRF) vulnerabilities in Nibbleblog before 4.0.5 allow remote attackers to hijack the authentication of administ…EPSS 0.71%6.5CVE-2015-6967Nibbleblog My Image plugin unrestricted file upload enables code executionThe My Image plugin in Nibbleblog before 4.0.5 permits uploading files with executable extensions without proper validation. An attacker with adminis…EPSS 49%analysed5.3CVE-2018-6470Nibbleblog information exposure vulnerabilityNibbleblog 4.0.5 on macOS defaults to having .DS_Store in each directory, causing DS_Store information to leak.EPSS 1.1%4.3CVE-2014-8996Nibbleblog cross-site scripting vulnerabilityMultiple cross-site scripting (XSS) vulnerabilities in Nibbleblog before 4.0.2 allow remote attackers to inject arbitrary web script or HTML via the …EPSS 1.9%

Source: NIST National Vulnerability Database (record CVE-2020-23356), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.