Security readout for executives and security teams
Plain-English summary
A flaw in Adobe Experience Manager's XML processing may let a low-privileged attacker read sensitive files and potentially execute code with the current user's permissions. Attacks require no victim interaction. Compromise could expose credentials or session data and enable broader account or system control.
Executive priority
Treat as an urgent remediation item for reachable or multi-user AEM environments. Prioritize systems holding sensitive content, credentials, or customer data. Require owners to confirm applicability and corrected status promptly, while avoiding unsupported claims of active exploitation.
Technical view
CVE-2026-48359 is a network-reachable XXE vulnerability (CWE-611) with CVSS 3.1 score 9.6. Exploitation requires low privileges but has low complexity and no user interaction. Adobe reports possible sensitive-file disclosure and arbitrary code execution in the current-user context, with changed security scope and high confidentiality and integrity impact.
Likely exposure
Potential exposure exists in Adobe Experience Manager as a Cloud Service, AEM 6.5 LTS, and AEM 6.5 deployments that have not reached Adobe's listed corrected release or hotfix level. The supplied version-range representation is ambiguous, so administrators should confirm exact applicability against Adobe advisory APSB26-74.
Exploitation context
The supplied sources do not establish active exploitation, and this CVE is not identified as being in CISA KEV. Nevertheless, network accessibility, low attack complexity, low required privileges, no user interaction, sensitive-file access, and possible code execution make prompt remediation important.
Researcher notes
The source bundle attributes arbitrary code execution and sensitive-file reading to improper XXE restriction. CVSS indicates AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N. The supplied affected-version notation does not clearly express inclusive boundaries; validate exact release applicability using APSB26-74. No exploit method, observed campaign, or confirmed exploitation is supplied.
Mitigation direction
- Review Adobe advisory APSB26-74 for the exact corrected release or required hotfix.
- Update affected AEM as a Cloud Service deployments to Adobe's corrected service level.
- Apply the applicable NPR-43972 hotfix to affected AEM 6.5 LTS deployments.
- Apply the applicable NPR-43971 hotfix to affected AEM 6.5 deployments.
- Restrict untrusted network and low-privileged account access until remediation is verified.
Validation and detection
- Inventory all AEM deployments, editions, versions, service packs, and installed hotfixes.
- Compare each deployment with the product-specific guidance in APSB26-74.
- Confirm NPR-43972 or NPR-43971 installation where applicable.
- Review AEM and identity logs for unusual XML processing, file access, or session activity.
- Verify compensating access restrictions remain effective on systems awaiting remediation.
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-611: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-48359 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
- 9.6 (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: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.
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:N3.15.8adobeVulnerability scoring details
Base CVSS 3.1 score
9.6CriticalVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
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/experience-manager/apsb26-74.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 Restriction of XML External Entity Reference
Improper Restriction of XML External Entity Reference represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.