Security readout for executives and security teams
Plain-English summary
A remotely reachable Adobe Campaign Classic server may be induced to make unauthorized requests, potentially exposing sensitive systems or enabling privilege escalation. No credentials or user action are required. The CVSS score is 10.0, so affected deployments warrant urgent investigation.
Executive priority
Treat as an immediate remediation priority for affected or externally reachable deployments. Identify owners, verify versions, apply Adobe-supported guidance, and monitor for suspicious server-originated activity. Escalate any evidence of unauthorized access or privilege changes.
Technical view
CVE-2026-47938 is a CWE-918 server-side request forgery vulnerability in Adobe Campaign Classic. The supplied CVSS 3.1 vector indicates network access, low complexity, no privileges, no user interaction, changed scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Deployments running Adobe Campaign Classic 7.4.3 build 9394 or earlier are identified as affected. Internet-accessible instances and servers able to reach internal services or cloud metadata may face greater consequences.
Exploitation context
The bundle provides no evidence of active exploitation, and the CVE is not listed as KEV. However, the stated attack requires no authentication or user interaction, materially increasing risk where vulnerable servers are network reachable.
Researcher notes
The source bundle describes versions through 7.4.3 build 9394 as affected, while its structured version data references build 9396 ambiguously. Confirm the precise fixed or affected boundary in Adobe APSB26-66. No exploit method, observed attacks, or specific patch details are established by the supplied evidence.
Mitigation direction
- Inventory Adobe Campaign Classic versions and prioritize systems running build 9394 or earlier.
- Review Adobe advisory APSB26-66 for the supported corrective update and deployment instructions.
- Restrict unnecessary inbound access to Campaign Classic servers until remediation is verified.
- Limit server outbound access to required destinations, especially internal services and cloud metadata endpoints.
- Increase monitoring for unusual server-originated requests and related privilege changes.
Validation and detection
- Confirm installed Adobe Campaign Classic versions and exact build numbers.
- Verify remediated systems no longer run build 9394 or earlier.
- Compare deployed configuration and update status with Adobe advisory APSB26-66.
- Review proxy, firewall, application, and identity logs for anomalous server-originated requests.
- Confirm outbound filtering prevents access to unnecessary internal and metadata services.
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-918: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCloud metadata behavior lookup
The CVE wording references SSRF or metadata access, so cloud discovery and credential material review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-47938 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
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/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:N/UI:N/S:C/C:H/I:H/A:H3.96adobeVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/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/campaign/apsb26-66.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.
Server-Side Request Forgery (SSRF)
Server-Side Request Forgery (SSRF) represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.