CVE-2015-6660

CVE-2015-6660 is a medium-severity vulnerability in Drupal with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Description

The Form API in Drupal 6.x before 6.37 and 7.x before 7.39 does not properly validate the form token, which allows remote attackers to conduct CSRF attacks that upload files in a different user's account via vectors related to "file upload value callbacks."

Frequently asked questions

What is CVE-2015-6660?
The Form API in Drupal 6.x before 6.37 and 7.x before 7.39 does not properly validate the form token, which allows remote attackers to conduct CSRF attacks that upload files in a different user's account via vectors related to "file upload value callbacks."
How severe is CVE-2015-6660?
CVE-2015-6660 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-6660 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-6660?
CVE-2015-6660 primarily affects Drupal. In total, 99 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-6660?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-6660 published?
CVE-2015-6660 was published on 2015-08-24 and last updated on 2026-06-17.

References

Affected products (99)

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