Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Unauthenticated REST endpoint, network-reachable by default; C:H for likely credential exposure; I:L for settings overwrite; A:N as no service disruption described.
Primary rating from Vendor (WPScan).
CVSS VectorVendor: WPScan
Lifecycle Timeline
3DescriptionCVE.org
The Auto x LINE WordPress plugin through 1.0.0 does not have authorization checks in some of its REST endpoints, allowing unauthenticated users to call them and update the plugin settings, clear logs etc
AnalysisAI
Missing authorization on REST API endpoints in the Auto x LINE WordPress plugin (through version 1.0.0) allows unauthenticated remote attackers to read and modify plugin settings and erase log data. The plugin facilitates LINE messaging integration for WordPress sites, meaning exposed settings likely include LINE API credentials and channel tokens. A publicly available proof-of-concept exists per WPScan, and the unauthenticated network-accessible nature of the flaw (PR:N, AV:N) makes it trivially exploitable against any exposed instance. No actively exploited status confirmed in CISA KEV at time of analysis.
Technical ContextAI
The Auto x LINE plugin (CPE: cpe:2.3:a:unknown:auto_x_line:*:*:*:*:*:*:*:*) integrates WordPress with the LINE messaging platform API. It registers WordPress REST API endpoints that lack proper capability checks - the WordPress standard being current_user_can() guards on register_rest_route() callbacks. Without these checks, any unauthenticated HTTP client can invoke the endpoints directly. The root cause aligns with CWE-862 (Missing Authorization), though NVD has left CWE unassigned. The CVSS C:H signal implies that plugin settings surfaced via these endpoints likely include sensitive LINE channel credentials (channel access tokens, channel secrets) that would give an attacker control over the site's LINE integration. The I:L metric reflects the ability to overwrite settings or clear audit logs.
RemediationAI
No vendor-released patched version is identified in the available data - the WPScan advisory does not cite a fixed release, and the plugin version ceiling is stated as 'through 1.0.0.' Administrators should immediately deactivate and remove the plugin until a patched version is released or authorization checks are confirmed added by the developer. As a compensating control, restrict access to WordPress REST API routes at the web server or WAF layer (e.g., block external requests to /wp-json/ paths associated with this plugin) - note this may disrupt legitimate plugin functionality. Monitor the WPScan advisory at https://wpscan.com/vulnerability/3e9da619-bce1-49b5-aa35-dce22b72f9e6/ and the WordPress plugin repository for an updated release. If the plugin must remain active, rotate LINE channel access tokens and secrets immediately to limit the window of credential exposure.
Same weakness CWE-862 – Missing Authorization
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-210830
GHSA-c47c-7wwv-x7m2