How severe is CVE-2018-1999009?

CVE-2018-1999009 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-1999009 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1999009?

CVE-2018-1999009 affects Octobercms October. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1999009?

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-2018-1999009 published?

CVE-2018-1999009 was published on 2018-07-23 and last updated on 2026-06-17.

CVE-2018-1999009

CVE-2018-1999009 is a high-severity vulnerability in Octobercms October with a CVSS 3.x base score of 8.1. 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-200.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Octobercms October
Published: 2018-07-23
Last modified: 2026-06-17

Description

October CMS version prior to Build 437 contains a Local File Inclusion vulnerability in modules/system/traits/ViewMaker.php#244 (makeFileContents function) that can result in Sensitive information disclosure and remote code execution. This attack appear to be exploitable remotely if the /backend path is accessible. This vulnerability appears to have been fixed in Build 437.

Frequently asked questions

What is CVE-2018-1999009?: October CMS version prior to Build 437 contains a Local File Inclusion vulnerability in modules/system/traits/ViewMaker.php#244 (makeFileContents function) that can result in Sensitive information disclosure and remote code execution. This attack appear to be exploitable remotely if the /backend path is accessible. This vulnerability appears to have been fixed in Build 437.
How severe is CVE-2018-1999009?: CVE-2018-1999009 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-1999009 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1999009?: CVE-2018-1999009 affects Octobercms October. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1999009?: 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-2018-1999009 published?: CVE-2018-1999009 was published on 2018-07-23 and last updated on 2026-06-17.

References

http://octobercms.com/support/article/rn-10

Affected products (1)

cpe:2.3:a:octobercms:october:-:*:*:*:*:*:*:*

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