CVE-2026-15141: CWE-346 Origin Validation Error in TP-Link Systems Inc. TL-WR820N v2
The web interface of the affected device relies on the HTTP referrer header as part of request validation. Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic. Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.
AI Analysis
Technical Summary
The affected device's web interface uses the HTTP Referer header as part of its request validation process. However, the validation is insufficient because requests with an empty or omitted Referer header may still be accepted and processed. This flaw can be exploited by an attacker who has adjacent network access to the web management interface, potentially allowing them to retrieve sensitive configuration information from the device. The vulnerability is categorized under CWE-346 (Origin Validation Error). No patch or remediation information is currently available.
Potential Impact
Successful exploitation may allow an attacker with adjacent network access to the device's web management interface to bypass request validation and obtain sensitive device configuration details. This could lead to unauthorized disclosure of information but does not indicate direct control or modification capabilities.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the web management interface to trusted users only and consider additional network-level protections to limit exposure.
CVE-2026-15141: CWE-346 Origin Validation Error in TP-Link Systems Inc. TL-WR820N v2
Description
The web interface of the affected device relies on the HTTP referrer header as part of request validation. Requests containing empty Referer value, or omitting the Referer header entirely, may be accepted and processed due to insufficient validation logic. Successful exploitation may allow an adjacent attacker with access to the web management interface to obtain device configuration details and other sensitive information.
CVSS v4.0
Score 5.3medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The affected device's web interface uses the HTTP Referer header as part of its request validation process. However, the validation is insufficient because requests with an empty or omitted Referer header may still be accepted and processed. This flaw can be exploited by an attacker who has adjacent network access to the web management interface, potentially allowing them to retrieve sensitive configuration information from the device. The vulnerability is categorized under CWE-346 (Origin Validation Error). No patch or remediation information is currently available.
Potential Impact
Successful exploitation may allow an attacker with adjacent network access to the device's web management interface to bypass request validation and obtain sensitive device configuration details. This could lead to unauthorized disclosure of information but does not indicate direct control or modification capabilities.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict network access to the web management interface to trusted users only and consider additional network-level protections to limit exposure.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fv83-qv7h-9c74
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-15141"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a7d12d0bf8831d5396c172f
Added to database: 08/13/2026, 00:41:52 UTC
Last enriched: 08/13/2026, 00:59:27 UTC
Last updated: 09/27/2026, 13:47:42 UTC
Views: 72
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