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CVE-2026-16962— Tamara Checkout <= 1.9.9.20 - Unauthenticated Order Status Manipulation

Quick assessment

Affected
Unknown Tamara Checkout
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Tamara Checkout WordPress 插件版本 1.9.9.20 及更低版本在其公共支付取消/失败回调 URL 中未对订单密钥（order key）、随机数（nonce）或任何权限进行检查，仅根据攻击者提供的数字订单 ID 即可更改 WooCommerce 订单的状态。因此，未经身份验证的攻击者可以通过遍历订单 ID，在整个商店范围内取消或标记任意订单为失败状态，从而触发下游的库存释放和通知等副作用。

AI Predicted 7.5 Difficulty: Trivial EPSS 0.18% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Tamara Checkout ≤ 1.9.9.20 affected
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I. Basic Information for CVE-2026-16962

Vulnerability Information
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Vulnerability Title
Tamara Checkout <= 1.9.9.20 - Unauthenticated Order Status Manipulation
Source: CVE Program / CVE List V5
Vulnerability Description
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).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Tamara Checkout 0 ~ 1.9.9.20 -

II. Public POCs for CVE-2026-16962

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III. Intelligence Information for CVE-2026-16962

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Vendor Advisories for CVE-2026-16962 (1)

Same Patch Batch · Unknown · 2026-08-21 · 20 CVEs total

CVE-2026-19848 6.5 MEDIUM ProfilePress < 4.17.1 - Unauthenticated Arbitrary Shortcode Execution via Display Name
CVE-2026-17559 5.3 MEDIUM Content Protector (Passster) < 4.3.9 - Unauthenticated Protected Content Disclosure via RE
CVE-2026-16650 5.3 MEDIUM Charitable < 1.8.12 - Unauthenticated Donation Payment-Status Manipulation via Square Webh
CVE-2026-15150 5.3 MEDIUM myCred < 3.2.5 - Unauthenticated Payment Bypass via Missing PayPal IPN Receiver Verificati
CVE-2026-15046 4.2 MEDIUM LitExtension: Store to WooCommerce Migration <= 1.2.5 - Connector Token Takeover via CSRF
CVE-2026-18356 3.7 LOW Limit Login Attempts Reloaded < 3.3.5 - Username Denylist Bypass via Case Variant and Acco
CVE-2026-13176 2.7 LOW Eventin < 4.1.21 - Contributor+ Server-Side Request Forgery
CVE-2026-13736 NewPath WildApricotPress Add-on – Member Directory <= 1.0.0 - Unauthenticated Member PII D
CVE-2025-15671 Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter
CVE-2026-14325 Drag and Drop Multiple File Upload for Contact Form 7 < 1.3.9.9 - Admin+ Stored XSS via dr
CVE-2026-14601 Link Whisper < 0.9.7 - Editor+ SQL Injection via domain Parameter
CVE-2026-16576 Dokan < 5.0.14 - Shop Manager+ Arbitrary Plugin Installation/Activation via REST API
CVE-2026-16575 Dokan < 5.0.14 - Unauthenticated Commission Settings Disclosure via Store Categories REST
CVE-2026-19085 Copy & Delete Posts < 1.5.6 - Author+ Password-Protected Post Content Disclosure
CVE-2026-19435 Copy & Delete Posts < 1.5.6 - Authenticated Arbitrary Post Content and Password Disclosure
CVE-2026-18781 Drag and Drop Multiple File Upload for Contact Form 7 < 1.3.9.9 - Unauthenticated RCE via
CVE-2026-16959 Media Library Assistant < 3.40 - Author+ SQL Injection via mla_search_connector
CVE-2026-16577 Dokan < 5.0.14 - Vendor+ Reverse Withdrawal Ledger Manipulation via Client-Supplied Amount
CVE-2026-75796 AI Engine 2.8.0 - 3.6.0 - Admin+ Multisite Network Administrator Account Takeover via MCP

IV. Related Vulnerabilities

Same product: Tamara Checkout
Same vendor: Unknown

V. Comments for CVE-2026-16962

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