How severe is CVE-2018-15565?

CVE-2018-15565 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-2018-15565 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-15565?

CVE-2018-15565 affects Simple-cms Project Simple Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-15565?

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-2018-15565 published?

CVE-2018-15565 was published on 2018-08-20 and last updated on 2026-06-17.

CVE-2018-15565

CVE-2018-15565 is a high-severity vulnerability in Simple-cms Project Simple 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% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Simple-cms Project Simple Cms
Published: 2018-08-20
Last modified: 2026-06-17

Description

An issue was discovered in daveismyname simple-cms through 2014-03-11. admin/addpage.php does not require authentication for adding a page. This can also be exploited via CSRF.

Frequently asked questions

What is CVE-2018-15565?: An issue was discovered in daveismyname simple-cms through 2014-03-11. admin/addpage.php does not require authentication for adding a page. This can also be exploited via CSRF.
How severe is CVE-2018-15565?: CVE-2018-15565 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-2018-15565 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-15565?: CVE-2018-15565 affects Simple-cms Project Simple Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-15565?: 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-2018-15565 published?: CVE-2018-15565 was published on 2018-08-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:simple-cms_project:simple_cms:*:*:*:*:*:*:*:*

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