Security readout for executives and security teams
Plain-English summary
CVE-2015-6508 is a cross-site scripting issue in pfSense before version 2.2.3. If the pfSense WebGUI is reachable and the vulnerable page is used, attacker-supplied content could run in a browser viewing the affected interface.
Executive priority
Prioritize remediation where old pfSense WebGUI instances are reachable beyond trusted administrators. Treat internet-exposed or broadly reachable management interfaces as higher urgency.
Technical view
The CVE describes XSS in pfSense WebGUI system_authservers.php. The vulnerable input is the descr parameter during a "new" action. Sources identify versions before pfSense 2.2.3 as affected, but do not provide CVSS, CWE, authentication requirements, or confirmed exploitation details.
Likely exposure
Exposure is most likely on pfSense systems running versions earlier than 2.2.3 with administrative WebGUI access reachable by users or networks that should not be trusted.
Exploitation context
The provided sources do not show KEV listing or active exploitation. The issue is web-interface XSS, so business impact depends on WebGUI exposure, user roles, and whether an attacker can submit content to the vulnerable field.
Researcher notes
Evidence is limited to the CVE description and pfSense references. No CVSS, CWE, CPE, authentication prerequisite, or exploitation confirmation is supplied in the bundle, so avoid over-scoring without local exposure context.
Mitigation direction
- Upgrade pfSense installations older than 2.2.3 to a fixed supported release.
- Restrict pfSense WebGUI access to trusted administrative networks only.
- Review vendor advisory guidance before relying on compensating controls.
- Remove stale or unsupported pfSense deployments from production use.
Validation and detection
- Inventory pfSense versions and flag any release earlier than 2.2.3.
- Confirm WebGUI is not exposed to untrusted networks.
- Review administrative interface logs for suspicious auth server description changes.
- Check vendor advisory and Redmine issue for environment-specific notes.
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-2015-6508 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://redmine.pfsense.org/issues/4698CVE reference · x_refsource_CONFIRM
- https://www.pfsense.org/security/advisories/pfSense-SA-15_06.webgui.ascCVE 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.