EUVD-2026-81339
GHSA-3m5h-9m27-j5hm
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Unauthenticated network request with no interaction bypasses authentication to log in as administrator, giving full site control, so PR:N/UI:N and C:H/I:H/A:H.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
5DescriptionCVE.org
The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.
Articles & Coverage 1
AnalysisAI
Unauthenticated attackers can log in as any WordPress user, including administrators, on sites running the Private Feed Key plugin at version 0.1 or below, because the plugin's feed-authentication check accepts any value already stored in a user's metadata instead of verifying a key that the plugin itself issued. The issue is network-reachable with no authentication or user interaction required (CVSS 3.1 9.8, CWE-287, AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), and publicly available exploit code exists; no CISA KEV listing is indicated in the available intelligence supplied for this analysis. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | No special conditions - remote unauthenticated exploitation against default configurations of the Private Feed Key WordPress plugin (versions through 0.1). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine top-priority vulnerability, not a high-CVSS-but-low-risk case. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch is identified in the available data - the plugin has no assigned vendor in its CPE record and the version ceiling is 0.1, so there is no confirmed fixed release to upgrade to. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress installations to determine whether the Private Feed Key plugin (version 0.1 or earlier) is installed and active, and immediately deactivate and delete it from every affected site - since no vendor patch is available, removal is the only complete remediation; also rotate administrator and other privileged account passwords and reset all WordPress salts/keys, and review authentication and access logs for unauthorized logins or administrative changes. …
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Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today