EUVD-2026-66876
GHSA-fjp2-v4jv-4x75
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
AV:N because the log is web-served; AC:L once debug is enabled; PR:N as no auth is required to read the file; C:H for password hashes and live tokens; no integrity or availability impact.
Primary rating from Vendor (wpscan).
CVSS VectorVendor: wpscan
Lifecycle Timeline
4DescriptionCVE.org
The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.3.1 does not restrict access to the debug log it writes, which is stored at a fixed and publicly reachable location, allowing unauthenticated users to read the OAuth tokens and authorisation codes it has issued as well as user records including password hashes when debug logging is enabled.
AnalysisAI
Unauthenticated access to a publicly reachable debug log file in the WP OAuth Server (Login with WordPress) WordPress plugin before 6.3.1 exposes sensitive credential material to any network attacker. When debug logging is enabled, the plugin writes OAuth tokens, authorization codes, and full user records including bcrypt password hashes to a fixed, predictable filesystem path that is served without access restriction. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the WP OAuth Server plugin's debug logging feature has been enabled by a site administrator at some point prior to or during the attack - this is a non-default configuration in production environments. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 7.5 score is appropriate for the worst-case scenario (debug logging enabled in a production environment) but overstates risk in typical production deployments where debug logging should be off. … 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 | Update the WP OAuth Server plugin to version 6.3.1 or later; this is the vendor-released patch that resolves the information disclosure. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, scan all WordPress installations for the WP OAuth Server plugin and identify which instances have debug logging enabled in the plugin settings. …
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
Leaving vuln.today