CVE-2026-73847

Emlog is an open source website building system. In 2.6.26 and earlier, missing CSRF protection on the AI Assistant execute_tool action in admin/ai.php lets a remote unauthenticated attacker submit a forged cross-site request from an attacker-controlled page to a recently logged-in administrator. The authentication cookie set in include/lib/loginauth.php has no explicit SameSite attribute, enabling Chrome's temporary Lax+POST grace window. The query_database case passes attacker-controlled sql and confirm_code values to Ai::queryDatabase in include/service/ai.php; read queries need no confirmation, write queries accept the public confirm string, only the blog table is write-protected, and aliasing password as pwd_hash bypasses output redaction. A successful request can read every database table and write every table except blog, including changing the user table to take over an administrator account. No fixed version is available as of this review.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/emlog/emlog/security/advisories/GHSA-v6wr-4x55-7qp5
https://github.com/emlog/emlog/security/advisories/GHSA-v6wr-4x55-7qp5

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-14 18:19

Updated : 2026-09-16 13:42

NVD link : CVE-2026-73847

Mitre link : CVE-2026-73847

CVE.ORG link : CVE-2026-73847

JSON object : View

Products Affected

No product.

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

CWE-798

Use of Hard-coded Credentials

CWE-1275

Sensitive Cookie with Improper SameSite Attribute

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