CVE-2026-30777 Auth bypass in EC-CUBE 4.1 series
Attackers with valid admin credentials can bypass two-factor authentication to gain unauthorized access to the administrative interface.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-30777?
CVE-2026-30777 is a medium-severity authentication bypass vulnerability in EC-CUBE 4.1 series, published on 5 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
EC-CUBE provided by EC-CUBE CO.,LTD. contains a multi-factor authentication (MFA) bypass vulnerability. An attacker who has obtained a valid administrator ID and password may be able to bypass two-factor authentication and gain unauthorized access to the administrative page.
Weakness: CWE-288
Which versions are affected by CVE-2026-30777?
It affects 1 product.
Products include Ec-Cube Ec-Cube.
How do I fix CVE-2026-30777?
No fix has been published for CVE-2026-30777 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-30777 being exploited?
There is no known exploitation of CVE-2026-30777 in the wild and no public exploit code.
Other vulnerabilities in EC-CUBE 4.1 series
Sources
Also known as GHSA-x865-r8g8-5r6r.