Security readout for executives and security teams
Plain-English summary
Adobe Campaign Classic has a critical flaw that may let an unauthenticated remote attacker misuse the server’s network access and escalate privileges. No user action is required. Successful exploitation could seriously affect confidential data, system integrity, and service availability.
Executive priority
Treat as an immediate remediation priority for network-reachable ACC deployments. The maximum CVSS score and unauthenticated attack characteristics create potentially severe business impact, although active exploitation is not evidenced in the supplied sources.
Technical view
CVE-2026-48331 is an SSRF vulnerability classified as CWE-918. Its CVSS 3.1 vector indicates network access, low complexity, no privileges, no user interaction, changed scope, and high confidentiality, integrity, and availability impacts. The supplied description identifies privilege escalation as the outcome.
Likely exposure
Network-reachable Adobe Campaign Classic deployments require urgent review, particularly ACC v7 version 7.4.3 build 9399. The supplied version data also contains “0” and a default-unaffected status, so the complete affected range cannot be determined confidently from this bundle.
Exploitation context
The CVSS vector describes unauthenticated, low-complexity, network-based exploitation without user interaction. The bundle does not include exploit details, observed attacks, or KEV listing; therefore, active exploitation is not established.
Researcher notes
The bundle identifies SSRF leading to privilege escalation but provides no vulnerable request path, root cause, patch details, indicators, or public exploit evidence. Version representation is ambiguous; use Adobe’s advisory as the authoritative source for affected and corrected releases.
Mitigation direction
- Review Adobe advisory APSB26-120 and apply the vendor-prescribed update or mitigation.
- Prioritize network-reachable ACC systems and restrict unnecessary inbound access.
- Limit ACC server access to internal services and sensitive network destinations.
- Monitor ACC-originated requests for unexpected destinations or unusual access patterns.
Validation and detection
- Inventory Adobe Campaign Classic installations and record exact versions and build numbers.
- Compare each deployment against Adobe advisory APSB26-120.
- Confirm remediated systems no longer run an affected build.
- Review network and application logs for anomalous server-originated requests.
- Verify access controls restrict ACC connectivity to required destinations.
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-2026-48331 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/apsb26-120.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.