How severe is CVE-2017-18036?

CVE-2017-18036 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2017-18036 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18036?

CVE-2017-18036 affects Atlassian Bitbucket. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18036?

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

When was CVE-2017-18036 published?

CVE-2017-18036 was published on 2018-02-02 and last updated on 2026-06-17.

CVE-2017-18036

CVE-2017-18036 is a medium-severity vulnerability in Atlassian Bitbucket with a CVSS 3.x base score of 4.3. 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Atlassian Bitbucket
Published: 2018-02-02
Last modified: 2026-06-17

Description

The Github repository importer in Atlassian Bitbucket Server before version 5.3.0 allows remote attackers to determine if a service they could not otherwise reach has open ports via a Server Side Request Forgery (SSRF) vulnerability.

Frequently asked questions

What is CVE-2017-18036?: The Github repository importer in Atlassian Bitbucket Server before version 5.3.0 allows remote attackers to determine if a service they could not otherwise reach has open ports via a Server Side Request Forgery (SSRF) vulnerability.
How severe is CVE-2017-18036?: CVE-2017-18036 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2017-18036 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18036?: CVE-2017-18036 affects Atlassian Bitbucket. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18036?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18036 published?: CVE-2017-18036 was published on 2018-02-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*

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