How severe is CVE-2018-3783?

CVE-2018-3783 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-2018-3783 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-3783?

CVE-2018-3783 affects Flintcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-3783?

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-2018-3783 published?

CVE-2018-3783 was published on 2018-08-17 and last updated on 2026-06-17.

CVE-2018-3783

CVE-2018-3783 is a critical-severity vulnerability in Flintcms with a CVSS 3.x base score of 9.8. 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-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Flintcms
Published: 2018-08-17
Last modified: 2026-06-17

Description

A privilege escalation detected in flintcms versions <= 1.1.9 allows account takeover due to blind MongoDB injection in password reset.

Frequently asked questions

What is CVE-2018-3783?: A privilege escalation detected in flintcms versions <= 1.1.9 allows account takeover due to blind MongoDB injection in password reset.
How severe is CVE-2018-3783?: CVE-2018-3783 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-2018-3783 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-3783?: CVE-2018-3783 affects Flintcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-3783?: 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-2018-3783 published?: CVE-2018-3783 was published on 2018-08-17 and last updated on 2026-06-17.

References

https://hackerone.com/reports/386807

Affected products (1)

cpe:2.3:a:flintcms:flintcms:*:*:*:*:*:node.js:*:*

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