Security readout for executives and security teams
Plain-English summary
This is an XSS issue in the Drupal Zendesk Feedback Tab module. A user with the Configure Zendesk Feedback Tab permission could inject script or HTML. The main business risk is misuse of a privileged or delegated admin account to run unwanted code in other users' browsers.
Executive priority
Treat as a targeted cleanup item, not an emergency, unless the module is installed on important public sites with broad admin delegation or suspected account compromise.
Technical view
CVE-2015-6921 affects Zendesk Feedback Tab module 7.x-1.x before 7.x-1.1 for Drupal. The CVE describes cross-site scripting through unspecified vectors, limited to remote administrators holding the Configure Zendesk Feedback Tab permission. No CVSS, CWE, or detailed exploit vector is provided in the bundle.
Likely exposure
Exposure appears limited to Drupal sites running the affected module version and granting the named configuration permission. Anonymous attackers are not described as in scope.
Exploitation context
The source bundle does not show KEV listing or active exploitation. Exploitation requires an authenticated administrative capability, but could still matter if delegated admins, compromised accounts, or shared admin access exist.
Researcher notes
Key gaps are the unspecified injection vector, absent CVSS, absent CWE, and no exploit evidence in the bundle. Validate against Drupal advisories and local module configuration rather than assuming broader Drupal exposure.
Mitigation direction
- Upgrade Zendesk Feedback Tab to 7.x-1.1 or later.
- Remove Configure Zendesk Feedback Tab permission from unnecessary roles.
- Review Drupal administrator accounts for least-privilege access.
- Check Drupal advisory guidance before applying compensating controls.
- Retire the module if it is unused.
Validation and detection
- Inventory Drupal 7 sites for the Zendesk Feedback Tab module.
- Confirm installed module version is not below 7.x-1.1.
- List roles with Configure Zendesk Feedback Tab permission.
- Review recent module configuration changes for unexpected HTML or script.
- Confirm Drupal security advisory status for the site baseline.
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
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2015-6921 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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/2561893CVE reference · x_refsource_MISC
- https://www.drupal.org/node/2561887CVE reference · x_refsource_CONFIRM
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.