Security readout for executives and security teams
Plain-English summary
Adobe ColdFusion has a critical path traversal flaw that can let a logged-in network attacker read sensitive files outside the intended directory. No user click is needed. The provided sources do not show active exploitation or a confirmed public exploit.
Executive priority
Handle as urgent patch-and-exposure reduction work. The flaw is critical, network-reachable, needs only low privileges, and can expose sensitive server-side files. Active exploitation is not established in the supplied evidence.
Technical view
CVE-2026-48318 is a CWE-22 improper pathname restriction issue in ColdFusion. It is rated CVSS 9.9 with AV:N, AC:L, PR:L, UI:N, and changed scope. The described impact is arbitrary file system read, with high confidentiality, integrity, and availability impact in the CVSS vector.
Likely exposure
Organizations running affected Adobe ColdFusion 2025 or ColdFusion 2023 versions are in scope. Exposure is highest where ColdFusion applications or management surfaces are reachable by untrusted networks and where low-privileged accounts exist.
Exploitation context
The CVE states exploitation requires low privileges and no user interaction. The bundle marks CISA KEV status as false and provides no cited evidence of active exploitation. Treat exploit maturity as unconfirmed from the supplied sources.
Researcher notes
Do not assume unauthenticated reachability: the CVSS vector requires low privileges. Focus validation on version exposure, authenticated attack surface, file-read impact, and evidence of sensitive file access. The sources do not provide exploit details or specific fixed build numbers in the bundle.
Mitigation direction
- Review Adobe APSB26-82 and apply the vendor-recommended ColdFusion updates.
- Prioritize internet-reachable ColdFusion systems and privileged application environments.
- Restrict untrusted network access to ColdFusion administrative and application surfaces.
- Rotate secrets if sensitive local files may have been exposed.
- Monitor Adobe guidance for revised affected-version or remediation details.
Validation and detection
- Inventory all ColdFusion 2025 and 2023 deployments and update levels.
- Compare each deployment against Adobe APSB26-82 affected-version guidance.
- Confirm vendor fixes or mitigations are applied in staging and production.
- Review access logs for unusual file access or traversal-like requests.
- Check whether any exposed local files contain credentials or secrets.
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-2026-48318 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
- Critical
- CVSS
- 9.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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.
SSVC decision data
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:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H3.16adobeVulnerability scoring details
Base CVSS 3.1 score
9.9CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://helpx.adobe.com/security/products/coldfusion/apsb26-82.htmlCVE reference, adobe · vendor-advisory
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.
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.