CVE-2026-7807: SmarterTools SmarterMail < Build 9560 Server Local File Inclusion via the /api/v1/report/summary/{type} API
SmarterTools SmarterMail builds prior to 9560 contain a local file inclusion vulnerability in the /api/v1/report/summary/{type} API endpoint that allows authenticated users to read arbitrary .json files on the system. Attackers can exploit this vulnerability combined with weak encryption algorithms and hardcoded keys to decrypt and access stored passwords and 2FA secrets for all users.
Security readout for executives and security teams
Plain-English summary
SmarterMail builds before 9560 have an authenticated file-read flaw that can expose sensitive JSON files. The advisory says attackers may combine this with weak encryption and hardcoded keys to recover stored passwords and 2FA secrets for users. This is high business risk for affected mail environments.
Executive priority
Treat this as urgent for any SmarterMail environment before Build 9560 because mail credentials and 2FA secrets may be exposed after authenticated access.
Technical view
CVE-2026-7807 is a CWE-22 local file inclusion issue in /api/v1/report/summary/{type}. It is network reachable, low complexity, requires authenticated privileges, and has CVSS 4.0 score 8.7. Sources identify SmarterMail builds prior to 9560 as affected.
Likely exposure
Exposure is most likely in SmarterTools SmarterMail deployments running builds before 9560, especially internet-accessible servers where any authenticated account exists or could be compromised.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Public advisory information exists, and exploitation requires authentication but no user interaction.
Researcher notes
The affected-version detail in the bundle says builds prior to 9560, while the structured affected entry is sparse. Do not broaden scope beyond SmarterMail without vendor confirmation.
Mitigation direction
Upgrade SmarterMail to Build 9560 or later per vendor release notes.
Review SmarterTools guidance for any additional fixed builds or hardening steps.
Limit SmarterMail access to trusted networks where feasible until patched.
Review and rotate potentially exposed passwords and 2FA secrets after remediation.
Monitor for suspicious authenticated API access to report summary endpoints.
Validation and detection
Inventory SmarterMail servers and record exact build numbers.
Confirm each production server is Build 9560 or later.
Review authentication logs for unusual low-privilege account activity.
Check web/API logs for access to /api/v1/report/summary/ paths.
Verify credential and 2FA secret rotation decisions are documented.
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.
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.
2CVSS vectors
3Timeline events
1ADP providers
3Source links
SSVC decision data
CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total
CVSS vector scores
2 official scores
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.