An issue was discovered in Nibbleblog v4.0.5.
Priority LOW 35CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
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()}").
Why it matters now
EPSS 0.01531 74th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:nibbleblog:nibbleblog:4.0.5:*:*:*:*:*:*:* | 4.0.5 | Vulnerable | Nibbleblog |
- cpe:2.3:a:nibbleblog:nibbleblog:4.0.5:*:*:*:*:*:*:* Versions 4.0.5 Vulnerable ·Nibbleblog
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16604
- 2026-10-03 Alias added: GHSA-q7mm-h7vg-6554
References
More Nibbleblog vulnerabilities
- TI-2015-05804 Unrestricted file upload vulnerability in the My Image plugin in Nibbleblog before 4.0.5… CVSS 2.0MEDIUM 6.5
- TI-2019-05436 Nibbleblog 4.0.5 allows eval injection by placing PHP code in the install.php username… CVSS 3.0CRITICAL 9.8
- TI-2020-14543 dmin/kernel/api/login.class.phpin in nibbleblog v3.7.1c allows type juggling for login… CVSS 3.1HIGH 7.5
- TI-2015-05803 Multiple cross-site request forgery (CSRF) vulnerabilities in Nibbleblog before 4.0.5… CVSS 2.0MEDIUM 6.8
- TI-2018-04756 Nibbleblog 4.0.5 on macOS defaults to having .DS_Store in each directory, causing DS_Store information to leak. CVSS 3.0MEDIUM 5.3
- TI-2014-07328 Multiple cross-site scripting (XSS) vulnerabilities in Nibbleblog before 4.0.2 allow… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2018-16604 · CVE Program
- CVE-2018-16604 · NVD
- FIRST EPSS
- GHSA-q7mm-h7vg-6554 · GitHub Advisory Database · CC BY 4.0
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