How severe is CVE-2026-1779?

CVE-2026-1779 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-1779 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-1779?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-1779 have an EU (EUVD) identifier?

Yes. CVE-2026-1779 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8824.

When was CVE-2026-1779 published?

CVE-2026-1779 was published on 2026-02-26 and last updated on 2026-06-17.

CVE-2026-1779

CVE-2026-1779 is a high-severity vulnerability with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-288.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-8824
Weakness: CWE-288
Published: 2026-02-26
Last modified: 2026-06-17

Description

The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.

Frequently asked questions

What is CVE-2026-1779?: The User Registration & Membership plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 5.1.2. This is due to incorrect authentication in the 'register_member' function. This makes it possible for unauthenticated attackers to log in a newly registered user on the site who has the 'urm_user_just_created' user meta set.
How severe is CVE-2026-1779?: CVE-2026-1779 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-1779 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-1779?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-1779 have an EU (EUVD) identifier?: Yes. CVE-2026-1779 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-8824.
When was CVE-2026-1779 published?: CVE-2026-1779 was published on 2026-02-26 and last updated on 2026-06-17.

References

Other CWE-288 vulnerabilities

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