CVE-2026-73847 Cross-site request forgery in emlog
Missing CSRF protection in Emlog's AI Assistant allows attackers to execute arbitrary SQL queries, leading to full database compromise and admin account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-73847?
CVE-2026-73847 is a medium-severity vulnerability in emlog, published on 14 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2026-73847?
How do I fix CVE-2026-73847?
No fix has been published for CVE-2026-73847 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-73847 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73847 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-v6wr-4x55-7qp5.