CVE-2018-16604
CVSS v3
7.2
HIGH
EPSS Score
1.5 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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., "${phpinfo()}").
Technical details
- Published
- 2018-09-06
Frequently asked questions
What is CVE-2018-16604?
An issue was discovered in Nibbleblog v4.0.5. With an admin's username and password, an attacker can execute arbitrary PHP code by changing the username because the username is surrounded by double quotes (e.g., "${phpinfo()}").
Is CVE-2018-16604 actively exploited?
Active exploitation of CVE-2018-16604 has not been confirmed. Its EPSS score was 1.5% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-16604?
CVE-2018-16604 has a CVSS v3 base score of 7.2 (HIGH severity).
Is CVE-2018-16604 affecting your environment?
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