How severe is CVE-2017-18103?

CVE-2017-18103 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2017-18103 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-18103?

CVE-2017-18103 affects Atlassian Http Library. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-18103?

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

When was CVE-2017-18103 published?

CVE-2017-18103 was published on 2018-07-18 and last updated on 2026-06-17.

CVE-2017-18103

CVE-2017-18103 is a medium-severity vulnerability in Atlassian Http Library with a CVSS 3.x base score of 4.7. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 4.3
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Atlassian Http Library
Published: 2018-07-18
Last modified: 2026-06-17

Description

The atlassian-http library, as used in various Atlassian products, before version 2.0.2 allows remote attackers to spoof web content in the Mozilla Firefox Browser through uploaded files that have a content-type of application/mathml+xml.

Frequently asked questions

What is CVE-2017-18103?: The atlassian-http library, as used in various Atlassian products, before version 2.0.2 allows remote attackers to spoof web content in the Mozilla Firefox Browser through uploaded files that have a content-type of application/mathml+xml.
How severe is CVE-2017-18103?: CVE-2017-18103 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2017-18103 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-18103?: CVE-2017-18103 affects Atlassian Http Library. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-18103?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-18103 published?: CVE-2017-18103 was published on 2018-07-18 and last updated on 2026-06-17.

References

https://jira.atlassian.com/browse/HTTP-3

Affected products (1)

cpe:2.3:a:atlassian:http_library:*:*:*:*:*:*:*:*

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