CVE-2026-48313: ColdFusion | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)
ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability that could lead to arbitrary file system read and limited write access. An attacker could exploit this vulnerability to access sensitive files and directories outside the intended access scope. Exploitation of this issue does not require user interaction. Scope is changed.
Security readout for executives and security teams
Plain-English summary
This critical ColdFusion flaw may let an unauthenticated remote attacker escape intended directory boundaries, read sensitive server files, and perform limited writes. No user action is required. Compromise could expose credentials, configuration, application data, or other files accessible to the ColdFusion service.
Executive priority
Treat this as an immediate remediation priority for exposed or sensitive ColdFusion systems. Unauthenticated network exploitation and sensitive-file access create substantial confidentiality risk. Require rapid inventory, vendor-guided remediation, temporary exposure reduction, and retrospective log review, while avoiding claims of active exploitation without additional evidence.
Technical view
CVE-2026-48313 is a CWE-22 path-traversal vulnerability with CVSS 3.1 score 9.3. It is network-accessible, low complexity, requires no privileges or user interaction, and changes scope. Reported impact is arbitrary filesystem read and limited write access, with high confidentiality impact, low integrity impact, and no stated availability impact.
Likely exposure
ColdFusion deployments running the affected releases and reachable from untrusted networks face the greatest risk. The narrative identifies ColdFusion 2025.9, 2023.20, and earlier; however, the structured version data is inconsistent, so administrators should confirm exact affected and fixed builds with Adobe.
Exploitation context
The supplied record does not establish active exploitation, and the CVE is not marked as included in KEV. Exploitation requires no authentication or user interaction according to the CVSS vector, but the bundle provides no observed attack activity, exploit maturity assessment, or affected endpoint details.
Researcher notes
The source bundle contains a version inconsistency: its narrative says 2025.9 and 2023.20 or earlier, while structured entries show different version values and default-unaffected status. Validate version boundaries directly against Adobe APSB26-68. No vulnerable path, technical root cause, proof of concept, detection signature, or confirmed exploitation is supplied.
Mitigation direction
Inventory ColdFusion deployments, versions, network exposure, and service-account filesystem permissions.
Review Adobe APSB26-68 and apply its specified updates or mitigations promptly.
Restrict ColdFusion access from untrusted networks until remediation is verified.
Reduce the ColdFusion service account's read and write permissions to required directories.
Monitor for unusual file access, configuration exposure, or unauthorized filesystem changes.
Validation and detection
Confirm each installed ColdFusion build against Adobe APSB26-68's affected and fixed version guidance.
Verify vulnerable instances are not reachable from untrusted networks before remediation completes.
Use approved defensive scanning or vendor validation guidance to confirm remediation.
Review application, access, filesystem, and integrity logs for suspicious reads or writes.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
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 · medium confidence lookup
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.
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.
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.
We 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.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-22 · source CWE mapping
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.