CVE-2018-14940
CVSS v3
7.5
HIGH
EPSS Score
1.3 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
PHPCMS 9 allows remote attackers to cause a denial of service (resource consumption) via large font_size, height, and width parameters in an api.php?op=checkcode request.
Technical details
- Published
- 2018-08-05
Frequently asked questions
What is CVE-2018-14940?
PHPCMS 9 allows remote attackers to cause a denial of service (resource consumption) via large font_size, height, and width parameters in an api.php?op=checkcode request.
Is CVE-2018-14940 actively exploited?
Active exploitation of CVE-2018-14940 has not been confirmed. Its EPSS score was 1.3% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-14940?
CVE-2018-14940 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-14940 affecting your environment?
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