How severe is CVE-2017-9513?

CVE-2017-9513 has a CVSS 3.x base score of 5.4, 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 low, and availability none.

Is CVE-2017-9513 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9513?

CVE-2017-9513 affects Atlassian Activity Streams. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9513?

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

When was CVE-2017-9513 published?

CVE-2017-9513 was published on 2018-01-29 and last updated on 2026-06-17.

CVE-2017-9513

CVE-2017-9513 is a medium-severity vulnerability in Atlassian Activity Streams with a CVSS 3.x base score of 5.4. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 5.5
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Atlassian Activity Streams
Published: 2018-01-29
Last modified: 2026-06-17

Description

Several rest inline action resources of Atlassian Activity Streams before version 6.3.0 allows remote authenticated attackers to watch any Confluence page & receive notifications when comments are added to the watched page, and vote & watch JIRA issues that they do not have access to, although they will not receive notifications for the issue, via missing permission checks.

Frequently asked questions

What is CVE-2017-9513?: Several rest inline action resources of Atlassian Activity Streams before version 6.3.0 allows remote authenticated attackers to watch any Confluence page & receive notifications when comments are added to the watched page, and vote & watch JIRA issues that they do not have access to, although they will not receive notifications for the issue, via missing permission checks.
How severe is CVE-2017-9513?: CVE-2017-9513 has a CVSS 3.x base score of 5.4, 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 low, and availability none.
Is CVE-2017-9513 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9513?: CVE-2017-9513 affects Atlassian Activity Streams. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9513?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-9513 published?: CVE-2017-9513 was published on 2018-01-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:atlassian:activity_streams:*:*:*:*:*:*:*:*

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