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Ziina CVE-2026-59554

| EUVDEUVD-2026-48200 HIGH
Weak Authentication (CWE-1390)
2026-07-23 Patchstack GHSA-7943-5x6v-f7g8
7.5
CVSS 3.1 · Vendor: Patchstack
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Severity by source

Vendor (Patchstack) PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
vuln.today AI
7.5 HIGH

Unauthenticated network endpoint with low complexity (AV:N/AC:L/PR:N/UI:N); broken auth enables unauthorized state change so I:H, with no confirmed confidentiality or availability loss.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

2
Analysis Generated
Jul 23, 2026 - 12:43 vuln.today
CVE Published
Jul 23, 2026 - 11:18 cve.org
HIGH 7.5

DescriptionCVE.org

Unauthenticated Broken Authentication in Ziina <= 1.2.21 versions.

AnalysisAI

Broken authentication in the Ziina WordPress payment plugin (versions <= 1.2.21) lets remote unauthenticated attackers bypass authentication controls, with the CVSS integrity-high rating indicating attackers can manipulate protected state or actions they should not be able to reach. Reported by Patchstack and classified under CWE-1390 (Weak Authentication), the issue is network-reachable with low complexity and no user interaction. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify site running Ziina plugin
Exploit
Send crafted request to plugin endpoint
Execution
Bypass broken authentication check
Impact
Perform unauthorized integrity-impacting action

Vulnerability AssessmentAI

Exploitation Exploitation requires only network access to a WordPress site running the Ziina plugin at version 1.2.21 or earlier, with the vulnerable plugin endpoint reachable - the CVSS vector (AV:N/AC:L/PR:N/UI:N) indicates no authentication, no user interaction, and low complexity against a default installation of the affected plugin. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N, base 7.5) describes a network-reachable, low-complexity, unauthenticated flaw impacting integrity only. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A remote attacker with no credentials sends crafted HTTP requests directly to the Ziina plugin's exposed endpoint on a public WordPress site, bypassing the broken authentication check to invoke actions or alter state reserved for authenticated users. Because the CVSS vector rates the attack as low-complexity with no user interaction, exploitation can be scripted against any reachable vulnerable site. …
Remediation No vendor-released patch version was identified at time of analysis in the provided data; consult the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/ziina/vulnerability/wordpress-ziina-plugin-1-2-21-broken-authentication-vulnerability?_s_id=cve) for the fixed release and upgrade beyond 1.2.21 as soon as one is confirmed. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory all WordPress installations running Ziina plugin versions 1.2.21 or earlier and assess the scope of customer-facing payment exposure. …

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CVE-2026-59554 vulnerability details – vuln.today

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