CVE-2026-76800— DeDeCMS select_media_post.php unrestricted upload
Quick assessment
Affected
n/a DeDeCMS
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.
DeDeCMS是DeDeCMS公司的一套内容管理系统软件。 DeDeCMS 3版本存在安全漏洞，该漏洞源于对文件/include/dialog/select_media_post.php中参数uploadfile的操作，可能导致不受限制的文件上传。
Possible ATT&CK Techniques 2 AI
T1505 · Server Software Component T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-76800
Vulnerability Information
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Vulnerability Title
DeDeCMS select_media_post.php unrestricted upload
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw has been found in DeDeCMS 3. Affected by this vulnerability is an unknown functionality of the file /include/dialog/select_media_post.php. Executing a manipulation of the argument uploadfile can lead to unrestricted upload. The attack can be executed remotely. The exploit has been published and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
DeDeCMS 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DeDeCMS是DeDeCMS公司的一套内容管理系统软件。 DeDeCMS 3版本存在安全漏洞，该漏洞源于对文件/include/dialog/select_media_post.php中参数uploadfile的操作，可能导致不受限制的文件上传。
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 |
|---|---|---|---|---|
| - | DeDeCMS | 3 |
cpe:2.3:a:dedecms:dedecms:*:*:*:*:*:*:*:*
|
|
II. Public POCs for CVE-2026-76800
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-76800 (1)
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🔗 CVE-2026-76800 DeDeCMS select_media_post.php unrestricted upload (EUVD-2026-63194) vdb-entry technical-description
Exploits & Public PoCs for CVE-2026-76800 (1)
Security Blog Posts for CVE-2026-76800 (1)
News Coverage for CVE-2026-76800 (1)
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🔗 CVE-2026-76800 in DeDeCMS third-party-advisory
Same Patch Batch · n/a · 2026-08-20 · 4 CVEs total
| CVE-2026-76783 | 7.3 HIGH | DeDeCMS advancedsearch.php sql injection |
| CVE-2026-52021 | code100x CMS - 100xDevs 安全漏洞 | |
| CVE-2025-52182 | The Library Corporation LS2 Admin 安全漏洞 |
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Same weakness: CWE-434
-
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V. Comments for CVE-2026-76800
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