How severe is CVE-2018-20345?

CVE-2018-20345 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-20345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-20345?

CVE-2018-20345 affects Stackstorm. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-20345?

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

When was CVE-2018-20345 published?

CVE-2018-20345 was published on 2018-12-21 and last updated on 2026-06-17.

CVE-2018-20345

CVE-2018-20345 is a medium-severity vulnerability in Stackstorm 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 3.5
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Stackstorm
Published: 2018-12-21
Last modified: 2026-06-17

Description

Incorrect access control in StackStorm API (st2api) in StackStorm before 2.9.2 and 2.10.x before 2.10.1 allows an attacker (who has a StackStorm account and is authenticated against the StackStorm API) to retrieve datastore items for other users by utilizing the /v1/keys "?scope=all" and "?user=<username>" query filter parameters. Enterprise editions with RBAC enabled are not affected.

Frequently asked questions

What is CVE-2018-20345?: Incorrect access control in StackStorm API (st2api) in StackStorm before 2.9.2 and 2.10.x before 2.10.1 allows an attacker (who has a StackStorm account and is authenticated against the StackStorm API) to retrieve datastore items for other users by utilizing the /v1/keys "?scope=all" and "?user=<username>" query filter parameters. Enterprise editions with RBAC enabled are not affected.
How severe is CVE-2018-20345?: CVE-2018-20345 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-20345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-20345?: CVE-2018-20345 affects Stackstorm. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-20345?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-20345 published?: CVE-2018-20345 was published on 2018-12-21 and last updated on 2026-06-17.

References

https://stackstorm.com/2018/12/20/stackstorm-v2-9-2-and-v2-10-1-a-security-release/

Affected products (1)

cpe:2.3:a:stackstorm:stackstorm:*:*:*:*:*:*:*:*

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