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Vulnerability record · CVE-2018-16604 · published 6 September 2018

CVE-2018-16604: Nibbleblog code injection vulnerability

Nibbleblog · Nibbleblog

An 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 username because the username is surrounded by double quotes (e.g., "${phpinfo()}").

7.2 CVSS 3.0 High EPSS 1.5% · top 26.3% CWE-94 · Code injection
7.2CVSS 3.0 base score, v2 6.5
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An 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 username because the username is surrounded by double quotes (e.g., "${phpinfo()}").

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
https://github.com/dignajar/nibbleblog/issues/131 ExploitThird Party Advisory
https://github.com/dignajar/nibbleblog/issues/131 ExploitThird 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%7.5CVE-2020-23356Nibbleblog vulnerabilitydmin/kernel/api/login.class.phpin in nibbleblog v3.7.1c allows type juggling for login bypass because == is used instead of === for password hashes, …EPSS 0.98%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%8.8CVE-2026-65660Microsoft sharepoint server code injection vulnerabilityImproper control of generation of code ('code injection') in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.KEVEPSS 2.1%9.8CVE-2026-60004Gitea diffpatch API code injection enables remote code executionGitea before 1.27.1 allows remote code execution through the diffpatch API by way of Git hook installation. The flaw is a code injection issue (CWE-9…KEVEPSS 24%analysed

Source: NIST National Vulnerability Database (record CVE-2018-16604), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.