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CVE-2026-103527

Quick assessment

Affected
Thelia Thelia
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.

Thelia v2.6.0 中的 Smarty 模板（address.html 和 address-update.html）未能正确对 “next” 参数中的双引号进行转义，导致当已认证用户访问包含攻击者控制的 JavaScript 的恶意链接时，会发生反射型跨站脚本攻击（XSS）。

AI Predicted 6.1 Difficulty: Easy EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
Thelia Thelia ≤ 2.6.0 affected
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I. Basic Information for CVE-2026-103527

Vulnerability Information
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Vulnerability Title
CVE-2026-103527
Source: CVE Program / CVE List V5
Vulnerability Description
Thelia v2.6.0's Smarty templates (address.html and address-update.html) fail to properly escape double quotes in the “next” parameter, enabling reflected Cross‑Site Scripting (XSS) when an authenticated user visits the malicious link containing attacker‑controlled JavaScript.
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

Affected Products

Vendor Product Affected Versions CPE Subscribe
Thelia Thelia 0 ~ 2.6.0 -

II. Public POCs for CVE-2026-103527

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III. Intelligence Information for CVE-2026-103527

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Vendor Advisories for CVE-2026-103527 (1)

Same Patch Batch · Thelia · 2026-10-12 · 13 CVEs total

CVE-2026-109397 7.2 HIGH Thelia before 3.1.2 and 3.2.x before 3.2.1 File Upload RCE via Filename Trailing Space
CVE-2026-109396 4.2 MEDIUM Thelia before 3.1.2 and 3.2.x before 3.2.1 CSV Formula Injection via Exports
CVE-2026-103521 CVE-2026-103521
CVE-2026-103524 CVE-2026-103524
CVE-2026-103523 CVE-2026-103523
CVE-2026-103522 CVE-2026-103522
CVE-2026-103526 CVE-2026-103526
CVE-2026-103529 CVE-2026-103529
CVE-2026-103537 CVE-2026-103537
CVE-2026-103528 CVE-2026-103528
CVE-2026-103535 CVE-2026-103535
CVE-2026-107248 CVE-2026-107248

IV. Related Vulnerabilities

Same product: Thelia
Same vendor: Thelia

V. Comments for CVE-2026-103527

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