C520WS v2, restricted accounts (for example, hub users) are intended to execute
only a limited set of low‑sensitivity operations. Due to a logic flaw in the
device’s API authorization mechanism, an attacker can craft requests that
leverage legitimate “method mapping” behavior to bypass whitelist restrictions,
allowing restricted operations to be masked as permitted requests and executed.
Successful
exploitation may allow an attacker (with access to a restricted account) to
execute unauthorized sensitive operations.
Depending on the operation invoked, impact could include device
resets, unintended configuration changes, or disruption of normal operation,
leading to loss of availability and integrity of the device.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| TP-Link Systems Inc. | Tapo C520WS v2 | unaffected |
|
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Project Subscriptions
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Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Sat, 06 Jun 2026 00:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | On Tapo C520WS v2, restricted accounts (for example, hub users) are intended to execute only a limited set of low‑sensitivity operations. Due to a logic flaw in the device’s API authorization mechanism, an attacker can craft requests that leverage legitimate “method mapping” behavior to bypass whitelist restrictions, allowing restricted operations to be masked as permitted requests and executed. Successful exploitation may allow an attacker (with access to a restricted account) to execute unauthorized sensitive operations. Depending on the operation invoked, impact could include device resets, unintended configuration changes, or disruption of normal operation, leading to loss of availability and integrity of the device. | |
| Title | Whitelist Validation Bypass in TP-Link Tapo C520WS | |
| Weaknesses | CWE-287 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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MITRE
Status: PUBLISHED
Assigner: TPLink
Published:
Updated: 2026-06-05T23:50:40.407Z
Reserved: 2026-03-25T18:54:03.343Z
Link: CVE-2026-34123
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-06-06T00:16:40.833
Modified: 2026-06-06T00:16:40.833
Link: CVE-2026-34123
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-06-06T01:30:06Z