CVE-2026-86837 Bookly < 28.3 - Unauthenticated Customer PII Update via Verification Bypass
Unauthenticated attackers can overwrite customer personal information by bypassing identity verification in the Bookly WordPress 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-2026-86837?
CVE-2026-86837 is a medium-severity missing authorization vulnerability in Unknown Bookly, published on 25 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Bookly WordPress plugin before 28.3 does not properly verify a customer's identity before updating their stored details, allowing unauthenticated attackers who know a customer's primary identifier to overwrite that customer's stored personal information such as name, email and address.
Weakness: CWE-639
Which versions are affected by CVE-2026-86837?
How do I fix CVE-2026-86837?
No fix has been published for CVE-2026-86837 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-86837 being exploited?
There is no known exploitation of CVE-2026-86837 in the wild and no public exploit code.
Sources
Also known as GHSA-qqvg-v89g-fp38.