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CVE-2026-93873— Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin

Quick assessment

Affected
Cotonti Cotonti
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.

Cotonti 1.0.0 及更早版本在联系插件的提交处理程序中未正确验证反 CSRF 令牌，从而允许攻击者伪造消息。攻击者可以从攻击者控制的页面自动提交联系表单，将伪造的消息（名义上来自已认证的用户）发送到管理员的收件箱。

CVSS 4.3 · Medium
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I. Basic Information for CVE-2026-93873

Vulnerability Information
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Vulnerability Title
Cotonti through 1.0.0 Cross-Site Request Forgery in the Contact Plugin
Source: CVE Program / CVE List V5
Vulnerability Description
Cotonti through 1.0.0 fails to validate anti-CSRF tokens in the contact plugin submission handler, allowing attackers to forge messages. Attackers can auto-submit contact forms from attacker-controlled pages to send forged messages attributed to authenticated victims to the administrator inbox.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨站请求伪造(CSRF)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cotonti Cotonti 0 ~ 1.0.0 -

II. Public POCs for CVE-2026-93873

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III. Intelligence Information for CVE-2026-93873

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Patches & Fixes for CVE-2026-93873 (1)

Vendor Pages for CVE-2026-93873 (1)

Other References for CVE-2026-93873 (3)

Same Patch Batch · Cotonti · 2026-09-18 · 6 CVEs total

CVE-2026-93868 8.1 HIGH Cotonti through 1.0.0 Predictable Password Recovery Token via Weak PRNG
CVE-2026-93872 7.5 HIGH Cotonti 1.0.0 PHP Object Injection via Comments Plugin Edit Action cb Parameter
CVE-2026-93869 6.1 MEDIUM Cotonti through 1.0.0 Open Redirect via Unanchored cot_url_check() Regex
CVE-2026-93871 5.4 MEDIUM Cotonti through 1.0.0 Stored Open Redirect via Page redir: Prefix
CVE-2026-93870 4.3 MEDIUM Cotonti through 1.0.0 Cross-Site Request Forgery in the Ratings Plugin AJAX Handler

IV. Related Vulnerabilities

Same product: Cotonti
Same vendor: Cotonti
Same weakness: CWE-352

V. Comments for CVE-2026-93873

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