CVE-2026-13597 QRcode Login for WeChat <= 1.3 - Unauthenticated Account Takeover
Unauthenticated attackers can bypass WeChat login validation to take over any user account, including administrators, in the QRcode Login plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-13597?
CVE-2026-13597 is a critical authentication bypass vulnerability in Unknown 微信二维码登陆, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The 微信二维码登陆 WordPress plugin through 1.3 does not properly validate WeChat webhook requests, as its signature check always passes, and it discloses the generated login code in the webhook response. This allows an unauthenticated attacker to forge a login event for any existing username, read the login code, and redeem it through an unauthenticated AJAX action to log in as that user, including an administrator, without a password.
Weakness: CWE-287
Which versions are affected by CVE-2026-13597?
How do I fix CVE-2026-13597?
No fix has been published for CVE-2026-13597 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-2026-13597 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-13597 exists.
Sources
Also known as GHSA-p6m4-vx92-q2pc.