How severe is CVE-2026-59554?

CVE-2026-59554 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-59554 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-59554?

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.

When was CVE-2026-59554 published?

CVE-2026-59554 was published on 2026-07-23.

CVE-2026-59554

CVE-2026-59554 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-1390.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1390
Published: 2026-07-23
Last modified: 2026-07-23

Description

Unauthenticated Broken Authentication in Ziina <= 1.2.21 versions.

Frequently asked questions

What is CVE-2026-59554?: Unauthenticated Broken Authentication in Ziina <= 1.2.21 versions.
How severe is CVE-2026-59554?: CVE-2026-59554 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-59554 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-59554?: 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.
When was CVE-2026-59554 published?: CVE-2026-59554 was published on 2026-07-23.

References

https://patchstack.com/database/wordpress/plugin/ziina/vulnerability/wordpress-ziina-plugin-1-2-21-broken-authentication-vulnerability?_s_id=cve

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