Security readout for executives and security teams
Plain-English summary
CVE-2016-15023 is a low-severity path traversal issue in SiteFusion Application Server's extension handler. An authorized attacker on an adjacent network could potentially read limited files through getextension.php. The cited fix is upgrading the server component to version 6.6.7.
Executive priority
Treat this as routine remediation unless SiteFusion is used in sensitive internal environments. The likely business impact is limited file disclosure, not takeover or outage, but unsupported or legacy installations should be upgraded during normal patch cycles.
Technical view
The issue affects SiteFusion Application Server versions 6.6.0 through 6.6.6 in getextension.php, part of the Extension Handler. The weakness is CWE-22 path traversal. CVSS 3.1 is 3.5, with adjacent network access, low privileges, no user interaction, and low confidentiality impact.
Likely exposure
Exposure is limited to organizations running SiteFusion Application Server 6.6.6 or earlier, especially where the application server or extension handler is reachable from adjacent networks by authenticated users. The source bundle does not identify affected cloud services, appliances, or downstream products.
Exploitation context
The sources do not support active exploitation, and the CVE is not listed as KEV. The CVSS vector indicates exploitation requires adjacent network position and low privileges, reducing internet-scale urgency.
Researcher notes
Evidence identifies the component, weakness class, affected versions, CVSS vector, and fixed release. The bundle does not provide a vulnerable parameter, proof of exploitation, exploit maturity, or detailed operational workaround. Avoid asserting internet exposure unless confirmed in the local environment.
Mitigation direction
- Inventory SiteFusion Application Server instances and identify versions 6.6.6 or earlier.
- Upgrade the affected component to SiteFusion Application Server 6.6.7.
- Confirm the patch commit 49fff155c303d6cd06ce8f97bba56c9084bf08ac is present where source-managed.
- Restrict access to the application server and extension handler to trusted networks and users.
- Monitor vendor guidance for any additional hardening recommendations.
Validation and detection
- Verify deployed SiteFusion Application Server versions are 6.6.7 or later.
- Confirm getextension.php is not reachable by untrusted adjacent network users.
- Review access logs for suspicious path traversal indicators without replaying payloads.
- Check source or package metadata for the referenced patch commit.
- Document any remaining legacy instances and compensating access controls.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2016-15023 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
- Low
- CVSS
- 3.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N2.11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
3.5LowVector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://vuldb.com/?id.219765CVE reference · vdb-entry, technical-description
- https://vuldb.com/?ctiid.219765CVE reference · signature, permissions-required
- https://github.com/sitefusion/server/pull/67CVE reference · issue-tracking
- https://github.com/sitefusion/server/commit/49fff155c303d6cd06ce8f97bba56c9084bf08acCVE reference · patch
- https://github.com/sitefusion/server/releases/tag/v6.6.7CVE reference · patch
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.