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CVE-2026-6858— Transbank Webpay < 1.14.0 - Unauthenticated Stored XSS

Quick assessment

Affected
Unknown Transbank Webpay
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.

Transbank Webpay Transbank Webpay是Transbank Webpay组织开源的一个在线支付网关服务。 Transbank Webpay 1.14.0之前版本存在跨站脚本漏洞，该漏洞源于未正确清理和转义日志内容，可能导致未经身份验证的用户对登录的管理员进行存储型跨站脚本攻击。

AI Predicted 6.4 Difficulty: Easy EPSS 0.29% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
Unknown Transbank Webpay < 1.14.0 affected
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I. Basic Information for CVE-2026-6858

Vulnerability Information
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Vulnerability Title
Transbank Webpay < 1.14.0 - Unauthenticated Stored XSS
Source: CVE Program / CVE List V5
Vulnerability Description
The Transbank Webpay WordPress plugin before 1.14.0 does not sanitize and escape logs to be displayed, allowing unauthenticated users to perform Stored XSS attacks against logged in administrator
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Transbank Webpay 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Transbank Webpay Transbank Webpay是Transbank Webpay组织开源的一个在线支付网关服务。 Transbank Webpay 1.14.0之前版本存在跨站脚本漏洞，该漏洞源于未正确清理和转义日志内容，可能导致未经身份验证的用户对登录的管理员进行存储型跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Transbank Webpay 0 ~ 1.14.0 -

II. Public POCs for CVE-2026-6858

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-6858

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Vendor Advisories for CVE-2026-6858 (1)

Same Patch Batch · Unknown · 2026-06-22 · 6 CVEs total

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CVE-2026-4259 Ultimate WooCommerce Auction Pro <= 2.4.5 - Reflected XSS via uwa_manage_auctions

IV. Related Vulnerabilities

Same vendor: Unknown