How severe is CVE-2026-3461?

CVE-2026-3461 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-3461 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-3461?

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

Does CVE-2026-3461 have an EU (EUVD) identifier?

Yes. CVE-2026-3461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22853.

When was CVE-2026-3461 published?

CVE-2026-3461 was published on 2026-04-15 and last updated on 2026-06-17.

CVE-2026-3461

CVE-2026-3461 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-22853
Weakness: CWE-288
Published: 2026-04-15
Last modified: 2026-06-17

Description

The Visa Acceptance Solutions plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.1.0. This is due to the `express_pay_product_page_pay_for_order()` function logging users in based solely on a user-supplied billing email address during guest checkout for subscription products, without verifying email ownership, requiring a password, or validating a one-time token. This makes it possible for unauthenticated attackers to log in as any existing user, including administrators, by providing the target user's email address in the billing_details parameter, resulting in complete account takeover and site compromise.

Frequently asked questions

What is CVE-2026-3461?: The Visa Acceptance Solutions plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.1.0. This is due to the `express_pay_product_page_pay_for_order()` function logging users in based solely on a user-supplied billing email address during guest checkout for subscription products, without verifying email ownership, requiring a password, or validating a one-time token. This makes it possible for unauthenticated attackers to log in as any existing user, including administrators, by providing the target user's email address in the billing_details parameter, resulting in complete account takeover and site compromise.
How severe is CVE-2026-3461?: CVE-2026-3461 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-3461 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-3461?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-3461 have an EU (EUVD) identifier?: Yes. CVE-2026-3461 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22853.
When was CVE-2026-3461 published?: CVE-2026-3461 was published on 2026-04-15 and last updated on 2026-06-17.

References

Other CWE-288 vulnerabilities

CVE-2026-79850 — Critical (CVSS 10.0): Vulnerabilities in the affected interface of AOS-8 could allow an unauthenticated remote attacker to bypass existing…
CVE-2026-79844 — Critical (CVSS 10.0): Authentication bypass vulnerabilities in the affected interface of AOS-10 could allow an unauthenticated remote…
CVE-2026-110130 — Critical (CVSS 10.0): Dockhand before 1.0.45 contains an authentication bypass in which the global auth hook skips authentication for any…
CVE-2026-33591 — Critical (CVSS 10.0): A vulnerability in Wapt Server before version 2.6.1.17813 allows a remote unauthenticated attacker to bypass security…
CVE-2026-53622 — Critical (CVSS 10.0): Traefik is an HTTP reverse proxy and load balancer. Versions prior to 3.7.3, 3.6.18, and 2.11.51 have a critical…
CVE-2026-48491 — Critical (CVSS 10.0): Traefik is an HTTP reverse proxy and load balancer. From 3.7.0 until 3.7.3, there is a high severity vulnerability in…

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