Security readout for executives and security teams
CVE-2015-4378 is a cross-site scripting issue in the Drupal Crumbs contributed module. A logged-in user with the "Administer Crumbs" permission could place script or HTML into the custom breadcrumb separator. Risk is mainly for Drupal sites using vulnerable 7.x-2.x Crumbs versions with that permission assigned beyond highly trusted administrators. Exposure is limited to Drupal sites running the Crumbs module 7.x-2.x before 7.x-2.3. Practical risk depends on whether any non-fully-trusted authenticated users have the "Administer Crumbs" permission and whether breadcrumb output is visible in sensitive administrator or user contexts. Treat this as a targeted hygiene issue, not an internet-wide emergency. Prioritize if legacy Drupal 7 sites are still in service or if content, marketing, or delegated admin users have Crumbs administration rights. Mitigation focus: Update the Drupal Crumbs module to 7.x-2.3 or later.; Restrict "Administer Crumbs" to fully trusted administrators only.; Review custom breadcrumb separator settings for unexpected HTML or script..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2015-4378 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.drupal.org/node/2458675CVE reference · x_refsource_CONFIRM
- https://www.drupal.org/node/2459315CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.