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CVE-2026-12240— Export User Data <= 2.2.6 - Authenticated (Subscriber+) PHP Object Injection to Arbitrary File Deletion via display_name Field

Quick assessment

Affected
qlstudio Export User Data
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.

qlstudio Export User Data是qlstudio团队的一款用户数据导出软件。 qlstudio Export User Data 2.2.6及之前版本存在反序列化注入漏洞，该漏洞源于反序列化函数中文件路径验证不足，可能导致通过身份验证的 attackers 删除服务器上的任意文件，进而可能实现远程代码执行。

CVSS 8.0 · High EPSS 0.62% · P50

Affected Version Matrix 1

VendorProduct Version RangeStatus
qlstudio Export User Data ≤ 2.2.6 affected
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I. Basic Information for CVE-2026-12240

Vulnerability Information
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Vulnerability Title
Export User Data <= 2.2.6 - Authenticated (Subscriber+) PHP Object Injection to Arbitrary File Deletion via display_name Field
Source: CVE Program / CVE List V5
Vulnerability Description
The Export User Data plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the unserialize function in all versions up to, and including, 2.2.6. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Successful exploitation requires an administrator to trigger a user data export while a subscriber-level (or higher) user has stored a crafted serialized XLSXWriter object payload as their display name.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
可信数据的反序列化
Source: CVE Program / CVE List V5
Vulnerability Title
qlstudio Export User Data 反序列化注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
qlstudio Export User Data是qlstudio团队的一款用户数据导出软件。 qlstudio Export User Data 2.2.6及之前版本存在反序列化注入漏洞，该漏洞源于反序列化函数中文件路径验证不足，可能导致通过身份验证的 attackers 删除服务器上的任意文件，进而可能实现远程代码执行。
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
qlstudio Export User Data 0 ~ 2.2.6 -

II. Public POCs for CVE-2026-12240

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III. Intelligence Information for CVE-2026-12240

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Patches & Fixes for CVE-2026-12240 (1)

Other References for CVE-2026-12240 (1)

IV. Related Vulnerabilities

Same product: Export User Data
Same weakness: CWE-502