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CVE-2026-97638— Forminator Forms <= 1.57.3.1 - Insecure Direct Object Reference to Unauthenticated Arbitrary Draft Deletion and Takeover via 'previous_draft_id' Parameter

Quick assessment

Affected
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder
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.

WordPress 插件 Forminator Forms（提供联系表单、支付表单及自定义表单构建器功能）在所有 1.57.3.1 及更早版本中存在不安全的直接对象引用（IDOR）漏洞。该漏洞源于 参数缺乏对用户可控密钥的验证。这使得未认证的攻击者能够删除其他用户保存的任意草稿，并通过用攻击者控制的表单提交内容覆盖这些草稿，从而劫持其草稿标识符（draft_id）。 利用此漏洞需要攻击者事先获取受害者的 ，该标识符可能通过共享的“稍后继续”链接被窃取。此外，尽管名义上存在 nonce（一次性令牌）检查，但由于任何未

CVSS 7.5 · High

Affected Version Matrix 1

VendorProduct Version RangeStatus
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder ≤ 1.57.3.1 affected
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I. Basic Information for CVE-2026-97638

Vulnerability Information
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Vulnerability Title
Forminator Forms <= 1.57.3.1 - Insecure Direct Object Reference to Unauthenticated Arbitrary Draft Deletion and Takeover via 'previous_draft_id' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.57.3.1 via the 'previous_draft_id' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to delete arbitrary saved drafts belonging to other users and take over those draft identifiers by overwriting them with attacker-controlled form submissions. This requires the attacker to have obtained a victim's draft_id, which may be harvested from a shared "continue later" link; the nominally present nonce check is effectively bypassed because the nonce is publicly obtainable by any unauthenticated visitor loading a form page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
wpmudev Forminator Forms – Contact Form, Payment Form & Custom Form Builder 0 ~ 1.57.3.1 -

II. Public POCs for CVE-2026-97638

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III. Intelligence Information for CVE-2026-97638

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Other References for CVE-2026-97638 (8)

IV. Related Vulnerabilities

Same product: Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Same vendor: wpmudev
Same weakness: CWE-639