CVE-2026-91017— Robokassa payment gateway for Woocommerce < 1.8.9 - Unauthenticated Payment Bypass via Forged JWT Callback
Quick assessment
Affected
Unknown Robokassa payment gateway for Woocommerce
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.
在启用非默认的延迟支付功能时，版本低于 1.8.9 的 WooCommerce WordPress 插件 Robokassa 支付网关未验证传入支付通知的真实性，允许未认证的攻击者伪造通知，从而在没有实际付款或有效签名的情况下，将任意 WooCommerce 订单标记为“已支付”或“挂起”状态。
Possible ATT&CK Techniques 3 AI
T1133 · External Remote Services T1003 · OS Credential Dumping T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-91017
Vulnerability Information
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Vulnerability Title
Robokassa payment gateway for Woocommerce < 1.8.9 - Unauthenticated Payment Bypass via Forged JWT Callback
Source: CVE Program / CVE List V5
Vulnerability Description
The Robokassa payment gateway for Woocommerce WordPress plugin before 1.8.9 does not verify the authenticity of incoming payment notifications when its non-default deferred-payment feature is enabled, allowing unauthenticated attackers to forge a notification and mark arbitrary WooCommerce orders as paid or on-hold without payment or a valid signature.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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 | Robokassa payment gateway for Woocommerce | 0 ~ 1.8.9 | - |
|
II. Public POCs for CVE-2026-91017
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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News Coverage for CVE-2026-91017 (1)
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🔗 Robokassa payment gateway for Woocommerce < 1.8.9 – Unauthenticated Payment Bypass via Forged JWT Callback | CVE 2026-91017 | Plugin Vulnerabilities exploit vdb-entry technical-description
Same Patch Batch · Unknown · 2026-09-17 · 29 CVEs total
| CVE-2026-86801 | 8.8 HIGH | To Do List Member 1.4 - 1.6 - Unauthenticated Stored XSS, File Listing and Deletion via Un |
| CVE-2026-87963 | 8.6 HIGH | Yo 1.1 - 1.3.1 - Unauthenticated SQL Injection via username Parameter |
| CVE-2026-87829 | 4.3 MEDIUM | Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attachment Deletion via Unvalidated |
| CVE-2026-87831 | 4.3 MEDIUM | Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attachment Deletion via Customer Ad |
| CVE-2025-15697 | Dictionary <= 1.0 - Reflected XSS via Multiple Parameters | |
| CVE-2026-85128 | Choose User Role at Registration for WooCommerce < 1.3.3 - Unauthenticated Privilege Escal | |
| CVE-2026-85130 | WPLP Cookie Consent < 4.4.4 - Unauthenticated Stored XSS via Consent Logs | |
| CVE-2026-86707 | Private Feed Key <= 0.1 - Unauthenticated Authentication Bypass via 'feedkey' Parameter | |
| CVE-2026-86709 | The Pressengine <= 1.0 - Unauthenticated Authentication Bypass | |
| CVE-2026-86710 | Login with QR <= 1.0.0 - Unauthenticated Authentication Bypass via 'autologin_code' Parame | |
| CVE-2026-86446 | LearnPress 4.4.3 - 4.4.6 - Unauthenticated Quiz Answer Disclosure via check-answer REST En | |
| CVE-2026-87836 | Comments Import & Export 2.1.11 - 2.5.3 - Author+ Comment PII Disclosure via Export | |
| CVE-2026-87786 | Dewa Kirim <= 1.0.0 - Unauthenticated Stored XSS via Checkout Coordinates | |
| CVE-2026-86824 | Newsletter < 9.3.8 - Unauthenticated Subscriber PII Disclosure and Modification via Predic | |
| CVE-2026-86788 | HT Mega 3.2.0 - 3.2.5 - Contributor+ Stored XSS via Section Headline Tag | |
| CVE-2026-90922 | Paid Member Subscriptions < 3.0.9 - Unauthenticated Membership Payment Bypass via PayPal S | |
| CVE-2026-88792 | Dictionary <= 1.0 - Unauthenticated Stored XSS via Direct Dictionary Update | |
| CVE-2026-88795 | wpShopGermany IT-RECHT KANZLEI < 2.4 - Unauthenticated RCE via Predictable API Token | |
| CVE-2026-88904 | PuppyFW <= 0.4.4 - Subscriber+ Arbitrary Blog Options Update and Deletion Leading to Privi | |
| CVE-2026-90923 | Autopay < 5.0.1 - Unauthenticated Cross-Customer Order Payment Parameter Disclosure and De |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: Unknown
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CVE-2026-87831
Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attac -
CVE-2026-87829
Checkout Field Manager < 7.9.7 - Subscriber+ Arbitrary Attac -
CVE-2026-86801
To Do List Member 1.4 - 1.6 - Unauthenticated Stored XSS, Fi -
CVE-2026-87963
Yo 1.1 - 1.3.1 - Unauthenticated SQL Injection via username -
CVE-2026-91019
Event Booking Manager for WooCommerce < 5.6.0 - Contributor+
V. Comments for CVE-2026-91017
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