CVE-2026-88785
Simple Membership < 4.8.3 - Newly Registered Member Password Disclosure via URL Query String
Unknown Simple Membership
CVSS
4.7MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.09%Chance of exploitation activity in the next 30 days, higher than 0% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 4.8.3Simple MembershipCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
The Simple Membership WordPress plugin before 4.8.3 does not avoid transmitting a newly registered member's plaintext password in a URL query string when an optional auto-login-after-registration feature is enabled, exposing the credential in browser history and in web server, proxy, and CDN access logs to anyone able to read them.
Text from CVE List
Affected versions 1
- Simple Membershipaffected: all versions before 4.8.3CVE List