Tamara Checkout Plugin up to 1.9.9.20 on WordPress authorization

Summaryinfo

A vulnerability marked as critical has been reported in Tamara Checkout Plugin up to 1.9.9.20. Affected is an unknown function. Performing a manipulation results in authorization. This vulnerability is identified as CVE-2026-16962. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Tamara Checkout Plugin up to 1.9.9.20. This affects an unknown code. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The Tamara Checkout WordPress plugin through 1.9.9.20 does not verify the order key, a nonce, or any capability on its public payment cancel/fail return URLs, changing a WooCommerce order's status based solely on an attacker-supplied numeric order id, so an unauthenticated attacker can cancel or fail arbitrary orders store-wide by enumerating ids (triggering downstream stock-release and notification side-effects).

The advisory is shared at wpscan.com. This vulnerability is uniquely identified as CVE-2026-16962 since 07/24/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/21/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• WordPress Plugin

Name

• Tamara Checkout Plugin

Version

• 1.9.9.0
• 1.9.9.1
• 1.9.9.2
• 1.9.9.3
• 1.9.9.4
• 1.9.9.5
• 1.9.9.6
• 1.9.9.7
• 1.9.9.8
• 1.9.9.9
• 1.9.9.10
• 1.9.9.11
• 1.9.9.12
• 1.9.9.13
• 1.9.9.14
• 1.9.9.15
• 1.9.9.16
• 1.9.9.17
• 1.9.9.18
• 1.9.9.19
• 1.9.9.20

CPE 2.3info

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CPE 2.2info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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