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CVE-2026-115840— VikRentCar Car Rental Management System <= 1.4.9 - Unauthenticated Stored Cross-Site Scripting via 'poplink' Parameter

Quick assessment

Affected
e4jvikwp VikRentCar Car Rental Management System
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 VikRentCar 汽车租赁管理系统在 1.4.9 及之前版本中存在存储型跨站脚本（Stored XSS）漏洞。该漏洞源于对"poplink"参数的输入过滤不足以及输出转义缺失，使得未经身份验证的攻击者能够在页面中注入任意 Web 脚本；当用户访问被注入的页面时，这些脚本将随之执行。该处理程序仅需一个 WordPress 令牌（vikwp_nonce），而插件本身会在公开的预订确认页面向未登录访客输出该令牌，因此攻击者无需任何账户即可获取有效令牌。

CVSS 7.2 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-115840

Vulnerability Information
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Vulnerability Title
VikRentCar Car Rental Management System <= 1.4.9 - Unauthenticated Stored Cross-Site Scripting via 'poplink' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The VikRentCar Car Rental Management System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'poplink' parameter in all versions up to, and including, 1.4.9 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The handler requires only a WordPress nonce (vikwp_nonce), which the plugin itself emits to unauthenticated visitors on the public booking-confirmation page, allowing an attacker to obtain a valid token without any account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
e4jvikwp VikRentCar Car Rental Management System 0 ~ 1.4.9 -

II. Public POCs for CVE-2026-115840

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III. Intelligence Information for CVE-2026-115840

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Other References for CVE-2026-115840 (6)

IV. Related Vulnerabilities

Same product: VikRentCar Car Rental Management System
Same vendor: e4jvikwp
Same weakness: CWE-79