Vulnerability · Published Aug 28, 2026 · Assigned by WPScan

CVE-2026-79995User Registration & Membership < 5.2.5 - Subscriber+ Pending Email Change Cancellation via IDOR

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in User Registration & Membership from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 82.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

The User Registration & Membership WordPress plugin before 5.2.5 does not verify that the account whose pending email change is being cancelled belongs to the user making the request, allowing authenticated users with Subscriber-level access and above to cancel any other user's in-progress email change, including an administrator's.

Affected products (as reported)

Vendor	Product	Versions
Unknown	User Registration & Membership	0 – before 5.2.5

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/551423b4-5c0c-48cc-9ba0-1f5637eea446/ exploit, vdb-entry, technical-description