How severe is CVE-2019-5483?

CVE-2019-5483 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2019-5483 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-5483?

CVE-2019-5483 affects Senecajs Seneca. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-5483?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2019-5483 published?

CVE-2019-5483 was published on 2019-09-09 and last updated on 2026-06-17.

CVE-2019-5483

Q: What is CVE-2019-5483?

Seneca < 3.9.0 contains a vulnerability that could lead to exposing environment variables to unauthorized users.

CVE-2019-5483 is a medium-severity vulnerability in Senecajs Seneca with a CVSS 3.x base score of 5.3. 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-209.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-209
Affected product: Senecajs Seneca
Published: 2019-09-09
Last modified: 2026-06-17

Description

Seneca < 3.9.0 contains a vulnerability that could lead to exposing environment variables to unauthorized users.

Frequently asked questions

What is CVE-2019-5483?: Seneca < 3.9.0 contains a vulnerability that could lead to exposing environment variables to unauthorized users.
How severe is CVE-2019-5483?: CVE-2019-5483 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2019-5483 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-5483?: CVE-2019-5483 affects Senecajs Seneca. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-5483?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-5483 published?: CVE-2019-5483 was published on 2019-09-09 and last updated on 2026-06-17.

References

https://hackerone.com/reports/526258

Affected products (1)

cpe:2.3:a:senecajs:seneca:*:*:*:*:*:node.js:*:*

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