How severe is CVE-2018-5955?

CVE-2018-5955 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-2018-5955 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5955?

CVE-2018-5955 affects Smartmobilesoftware Gitstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5955?

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-2018-5955 published?

CVE-2018-5955 was published on 2018-01-21 and last updated on 2026-06-17.

CVE-2018-5955

CVE-2018-5955 is a critical-severity vulnerability in Smartmobilesoftware Gitstack with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 81% places it in the 100th 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: 81% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Smartmobilesoftware Gitstack
Published: 2018-01-21
Last modified: 2026-06-17

Description

An issue was discovered in GitStack through 2.3.10. User controlled input is not sufficiently filtered, allowing an unauthenticated attacker to add a user to the server via the username and password fields to the rest/user/ URI.

Frequently asked questions

What is CVE-2018-5955?: An issue was discovered in GitStack through 2.3.10. User controlled input is not sufficiently filtered, allowing an unauthenticated attacker to add a user to the server via the username and password fields to the rest/user/ URI.
How severe is CVE-2018-5955?: CVE-2018-5955 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-2018-5955 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 81% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5955?: CVE-2018-5955 affects Smartmobilesoftware Gitstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5955?: 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-2018-5955 published?: CVE-2018-5955 was published on 2018-01-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:smartmobilesoftware:gitstack:*:*:*:*:*:*:*:*

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