How severe is CVE-2018-15851?

CVE-2018-15851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-15851 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15851?

CVE-2018-15851 affects Flexocms Project Flexo Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15851?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-15851 published?

CVE-2018-15851 was published on 2018-08-25 and last updated on 2026-06-17.

CVE-2018-15851

CVE-2018-15851 is a high-severity vulnerability in Flexocms Project Flexo Cms with a CVSS 3.x base score of 8.8. 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-352.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Flexocms Project Flexo Cms
Published: 2018-08-25
Last modified: 2026-06-17

Description

An issue was discovered in Flexo CMS v0.1.6. There is a CSRF vulnerability that can add an administrator via /admin/user/add.

Frequently asked questions

What is CVE-2018-15851?: An issue was discovered in Flexo CMS v0.1.6. There is a CSRF vulnerability that can add an administrator via /admin/user/add.
How severe is CVE-2018-15851?: CVE-2018-15851 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-15851 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15851?: CVE-2018-15851 affects Flexocms Project Flexo Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15851?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-15851 published?: CVE-2018-15851 was published on 2018-08-25 and last updated on 2026-06-17.

References

https://github.com/flexocms/flexo1.source/issues/25

Affected products (1)

cpe:2.3:a:flexocms_project:flexo_cms:0.1.6:*:*:*:*:*:*:*

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