How severe is CVE-2018-20012?

CVE-2018-20012 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-20012 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20012?

CVE-2018-20012 affects Phpcmf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20012?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-20012 published?

CVE-2018-20012 was published on 2018-12-10 and last updated on 2026-06-17.

CVE-2018-20012

CVE-2018-20012 is a medium-severity vulnerability in Phpcmf with a CVSS 3.x base score of 4.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Phpcmf
Published: 2018-12-10
Last modified: 2026-06-17

Description

PHPCMF 4.1.3 has XSS via the first input field to the index.php?s=member&c=register&m=index URI.

Frequently asked questions

What is CVE-2018-20012?: PHPCMF 4.1.3 has XSS via the first input field to the index.php?s=member&c=register&m=index URI.
How severe is CVE-2018-20012?: CVE-2018-20012 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-20012 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20012?: CVE-2018-20012 affects Phpcmf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20012?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20012 published?: CVE-2018-20012 was published on 2018-12-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phpcmf:phpcmf:4.1.3:*:*:*:*:*:*:*

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