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CVE-2026-89426— Knit Pay <= 9.6.1.0 - Authenticated (Subscriber+) Privilege Escalation via Gravity Forms Role Field

Quick assessment

Affected
knitpay Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more
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.

Knit Pay 插件支持 Cashfree、Instamojo、Razorpay、PayPal 等多种支付方式，该插件在 9.6.1.0 及更早的所有版本中存在权限提升漏洞。漏洞成因在于 函数直接从一个由攻击者可控的 Gravity Forms 表单字段中读取目标角色——该字段通过 Feed 配置中的 进行设置——并将此值直接传入 函数，而未对传入的值进行白名单校验。这使得拥有订阅者（Subscriber）及以上权限的已认证攻击者，可以在提交表单时篡改隐藏的角色字段值，从而将自身权限提升至管理员（Administ

CVSS 8.8 · High EPSS 0.47% · P39

Affected Version Matrix 1

VendorProduct Version RangeStatus
knitpay Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more ≤ 9.6.1.0 affected
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I. Basic Information for CVE-2026-89426

Vulnerability Information
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Vulnerability Title
Knit Pay <= 9.6.1.0 - Authenticated (Subscriber+) Privilege Escalation via Gravity Forms Role Field
Source: CVE Program / CVE List V5
Vulnerability Description
The Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 9.6.1.0. This is due to the `maybe_update_user_role()` function reading the target role directly from an attacker-controlled Gravity Forms entry field — configured via the feed's `user_role_field_id` — and passing it to `WP_User::set_role()` without validating the supplied value against an allowlist of permitted roles. This makes it possible for authenticated attackers, with Subscriber-level access and above, to elevate their privileges to administrator by tampering with the hidden role field value at form submission time. Exploitation is further enabled by the fact that $0 orders are synchronously marked as SUCCESS during form submission without requiring a real payment, and when no GF User Registration user can be resolved, the role assignment target falls back to `$lead['created_by']` — the currently authenticated submitter's own user ID — making any authenticated form submitter an eligible exploitation target.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
knitpay Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more 0 ~ 9.6.1.0 -

II. Public POCs for CVE-2026-89426

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III. Intelligence Information for CVE-2026-89426

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Vendor Advisories for CVE-2026-89426 (1)

IV. Related Vulnerabilities

Same vendor: knitpay
Same weakness: CWE-269

V. Comments for CVE-2026-89426

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