CVE-2026-9282— W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter
Public Exploits 1
Nuclei · 1 CVE-2026-9282.yaml [template]
Affected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| boldgrid | W3 Total Cache | ≤ 2.9.4 | affected |
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I. Basic Information for CVE-2026-9282
Vulnerability Information
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Vulnerability Title
W3 Total Cache <= 2.9.4 - Unauthenticated Arbitrary File Read via 'f_array[]' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The W3 Total Cache plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 2.9.4 via the setupSources function. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Exploitation requires enabling manual minify mode and supplying a manual-format minify filename so that the hash is empty and the f_array[] entries are not overwritten before reaching setupSources().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
boldgrid W3 Total Cache 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
boldgrid W3 Total Cache是boldgrid公司开源的一款网站缓存插件。 boldgrid W3 Total Cache 2.9.4及之前版本存在路径遍历漏洞，该漏洞源于setupSources函数存在目录遍历问题，可能导致未经身份验证的攻击者读取服务器上包含敏感信息的任意文件。
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 |
|---|---|---|---|---|
| boldgrid | W3 Total Cache | 0 ~ 2.9.4 | - |
II. Public POCs for CVE-2026-9282
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | W3 Total Cache WordPress plugin <= 2.9.4 contains a directory traversal caused by improper handling in setupSources function, letting unauthenticated attackers read arbitrary files, exploit requires manual minify mode enabled with specific filename. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-9282.yaml | POC Details |
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Patches & Fixes for CVE-2026-9282 (1)
Other References for CVE-2026-9282 (1)
IV. Related Vulnerabilities
Same product: W3 Total Cache
- CVE-2026-57623
WordPress W3 Total Cache plugin <= 2.9.4 - Arbitrary Code Ex - CVE-2026-39595
WordPress W3 Total Cache plugin <= 2.9.1 - Broken Access Con - CVE-2026-5032
W3 Total Cache <= 2.9.3 - Unauthenticated Security Token Exp - CVE-2026-27384
WordPress W3 Total Cache plugin <= 2.9.1 - Arbitrary Code Ex - CVE-2025-9501
W3 Total Cache < 2.8.13 - Unauthenticated Command Injection
Same vendor: boldgrid
- CVE-2026-57428
WordPress Sprout Clients plugin <= 3.2.3 - Cross Site Script - CVE-2026-57418
WordPress Client Invoicing by Sprout Invoices plugin <= 20.8 - CVE-2026-57623
WordPress W3 Total Cache plugin <= 2.9.4 - Arbitrary Code Ex - CVE-2026-39595
WordPress W3 Total Cache plugin <= 2.9.1 - Broken Access Con - CVE-2026-3143
Total Upkeep <= 1.17.1 - Missing Authorization to Unauthenti
Same weakness: CWE-22
- CVE-2026-9856
Path Traversal in huggingface/transformers - CVE-2026-9335
Improper Handling of HDF5 ExternalLinks in keras-team/keras - CVE-2026-13339
CubeWP Framework <= 1.1.30 - Unauthenticated Arbitrary File - CVE-2026-18352
User Access Manager <= 2.3.15 - Unauthenticated Arbitrary Fi - CVE-2026-67295
FreeRDP before 3.29.0 Path Traversal via drive redirection
V. Comments for CVE-2026-9282
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