How severe is CVE-2018-11686?

CVE-2018-11686 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-11686 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11686?

CVE-2018-11686 affects Flowpaper Flexpaper. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11686?

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

When was CVE-2018-11686 published?

CVE-2018-11686 was published on 2019-07-03 and last updated on 2026-06-17.

CVE-2018-11686

CVE-2018-11686 is a critical-severity vulnerability in Flowpaper Flexpaper with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 50% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-20.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 50% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Flowpaper Flexpaper
Published: 2019-07-03
Last modified: 2026-06-17

Description

The Publish Service in FlexPaper (later renamed FlowPaper) 2.3.6 allows remote code execution via setup.php and change_config.php.

Frequently asked questions

What is CVE-2018-11686?: The Publish Service in FlexPaper (later renamed FlowPaper) 2.3.6 allows remote code execution via setup.php and change_config.php.
How severe is CVE-2018-11686?: CVE-2018-11686 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-11686 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 50% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11686?: CVE-2018-11686 affects Flowpaper Flexpaper. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11686?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2018-11686 published?: CVE-2018-11686 was published on 2019-07-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:flowpaper:flexpaper:*:*:*:*:*:*:*:*

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