Security readout for executives and security teams
Plain-English summary
CVE-2015-8233 is an XSS flaw in the Drupal MAYO theme settings. A user who already has the “Administer themes” permission could inject script or HTML. The main business risk is from over-broad admin delegation or a compromised admin account, not anonymous internet exploitation.
Executive priority
Treat this as a targeted cleanup item for legacy Drupal estates. Prioritize if MAYO is installed and theme administration is delegated broadly.
Technical view
The vulnerability affects MAYO theme 7.x-1.x before 7.x-1.4 and 7.x-2.x before 7.x-2.6 for Drupal. Sources describe unspecified vectors in theme settings allowing remote administrators with “Administer themes” permission to inject arbitrary web script or HTML.
Likely exposure
Exposure is limited to Drupal sites using vulnerable MAYO theme versions and granting “Administer themes” to users beyond tightly trusted administrators.
Exploitation context
The provided sources do not show active exploitation, and CISA KEV is false. Exploitation requires an authenticated administrative role with theme administration rights, based on the CVE description.
Researcher notes
Evidence is sparse: no CVSS, CWE, exploit details, or affected CPEs are provided. The key constraints are the MAYO theme version ranges and the required Drupal permission. The vector is only described as related to theme settings.
Mitigation direction
- Upgrade MAYO 7.x-1.x to 7.x-1.4 or later.
- Upgrade MAYO 7.x-2.x to 7.x-2.6 or later.
- Review and minimize users with “Administer themes” permission.
- Check Drupal advisory pages for any site-specific guidance.
Validation and detection
- Inventory Drupal sites using the MAYO theme.
- Confirm installed MAYO branch and version.
- Review role assignments for “Administer themes” permission.
- Check audit logs for recent theme settings changes.
- Verify upgrades in staging before production rollout.
Public sources used
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
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CVE-2015-8233 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/2613048CVE reference · x_refsource_CONFIRM
- https://www.drupal.org/node/2613424CVE reference · x_refsource_MISC
- https://www.drupal.org/node/2613046CVE 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.