How severe is CVE-2019-19033?

CVE-2019-19033 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-2019-19033 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-19033?

CVE-2019-19033 affects Jalios Jcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-19033?

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-2019-19033 published?

CVE-2019-19033 was published on 2019-11-21 and last updated on 2026-06-17.

CVE-2019-19033

CVE-2019-19033 is a critical-severity vulnerability in Jalios Jcms 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-798.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Jalios Jcms
Published: 2019-11-21
Last modified: 2026-06-17

Description

Jalios JCMS 10 allows attackers to access any part of the website and the WebDAV server with administrative privileges via a backdoor account, by using any username and the hardcoded dev password.

Frequently asked questions

What is CVE-2019-19033?: Jalios JCMS 10 allows attackers to access any part of the website and the WebDAV server with administrative privileges via a backdoor account, by using any username and the hardcoded dev password.
How severe is CVE-2019-19033?: CVE-2019-19033 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-2019-19033 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-19033?: CVE-2019-19033 affects Jalios Jcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-19033?: 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-2019-19033 published?: CVE-2019-19033 was published on 2019-11-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:jalios:jcms:10.0:*:*:*:*:*:*:*

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