How severe is CVE-2026-4549?

CVE-2026-4549 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-4549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-4549 have an EU (EUVD) identifier?

Yes. CVE-2026-4549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14308.

When was CVE-2026-4549 published?

CVE-2026-4549 was published on 2026-03-22 and last updated on 2026-06-17.

CVE-2026-4549

CVE-2026-4549 is a low-severity vulnerability with a CVSS 3.x base score of 3.1. 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-285.

Key facts

Severity: Low (CVSS 3.x base score 3.1)
CVSS v2: 2.1
CVSS v4: 2.3
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14308
Weakness: CWE-285
Published: 2026-03-22
Last modified: 2026-06-17

Description

A flaw has been found in mickasmt next-saas-stripe-starter 1.0.0. Affected by this issue is the function openCustomerPortal of the file actions/open-customer-portal.ts of the component Stripe API. This manipulation causes authorization bypass. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult.

Frequently asked questions

What is CVE-2026-4549?: A flaw has been found in mickasmt next-saas-stripe-starter 1.0.0. Affected by this issue is the function openCustomerPortal of the file actions/open-customer-portal.ts of the component Stripe API. This manipulation causes authorization bypass. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult.
How severe is CVE-2026-4549?: CVE-2026-4549 has a CVSS 3.x base score of 3.1, rated low severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-4549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-4549 have an EU (EUVD) identifier?: Yes. CVE-2026-4549 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14308.
When was CVE-2026-4549 published?: CVE-2026-4549 was published on 2026-03-22 and last updated on 2026-06-17.

References

Other CWE-285 (Improper Authorization) vulnerabilities

CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
CVE-2026-34048 — Critical (CVSS 9.9): Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to…
CVE-2026-5412 — Critical (CVSS 9.9): In Juju versions prior to 2.9.57 and 3.6.21, an authorization issue exists in the Controller facade. An authenticated…

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