How severe is CVE-2017-9244?

CVE-2017-9244 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2017-9244 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-9244?

CVE-2017-9244 affects Trello. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-9244?

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

When was CVE-2017-9244 published?

CVE-2017-9244 was published on 2017-08-02 and last updated on 2026-06-17.

CVE-2017-9244

CVE-2017-9244 is a medium-severity vulnerability in Trello with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Trello
Published: 2017-08-02
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card.

Frequently asked questions

What is CVE-2017-9244?: Cross-site scripting (XSS) vulnerability in the Trello app before 4.0.8 for iOS might allow remote attackers to inject arbitrary web script or HTML by uploading and attaching a crafted photo to a Card.
How severe is CVE-2017-9244?: CVE-2017-9244 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2017-9244 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-9244?: CVE-2017-9244 affects Trello. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-9244?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-9244 published?: CVE-2017-9244 was published on 2017-08-02 and last updated on 2026-06-17.

References

https://hackerone.com/reports/227853

Affected products (1)

cpe:2.3:a:trello:trello:*:*:*:*:*:iphone_os:*:*

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