How severe is CVE-2015-6921?

CVE-2015-6921 has a CVSS 2.0 base score of 2.6, rated low severity.

Is CVE-2015-6921 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-2015-6921?

CVE-2015-6921 affects Zendesk Zendesk Feedback Tab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-6921?

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

When was CVE-2015-6921 published?

CVE-2015-6921 was published on 2015-09-11 and last updated on 2026-06-17.

CVE-2015-6921

CVE-2015-6921 is a low-severity vulnerability in Zendesk Zendesk Feedback Tab with a CVSS 2.0 base score of 2.6. 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: Low (CVSS 2.0 base score 2.6)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Zendesk Zendesk Feedback Tab
Published: 2015-09-11
Last modified: 2026-06-17

Description

Cross-site scripting (XSS) vulnerability in the Zendesk Feedback Tab module 7.x-1.x before 7.x-1.1 for Drupal allows remote administrators with the "Configure Zendesk Feedback Tab" permission to inject arbitrary web script or HTML via unspecified vectors.

Frequently asked questions

What is CVE-2015-6921?: Cross-site scripting (XSS) vulnerability in the Zendesk Feedback Tab module 7.x-1.x before 7.x-1.1 for Drupal allows remote administrators with the "Configure Zendesk Feedback Tab" permission to inject arbitrary web script or HTML via unspecified vectors.
How severe is CVE-2015-6921?: CVE-2015-6921 has a CVSS 2.0 base score of 2.6, rated low severity.
Is CVE-2015-6921 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-2015-6921?: CVE-2015-6921 affects Zendesk Zendesk Feedback Tab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-6921?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6921 published?: CVE-2015-6921 was published on 2015-09-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:zendesk:zendesk_feedback_tab:7.x-1.x:dev:*:*:*:drupal:*:*

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