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CVE-2026-76800

DeDeCMS select_media_post.php unrestricted upload

MEDIUM
6.3
CVSS Score
Published: August 20, 2026 at 02:00 AM UTC
Updated: August 21, 2026 at 04:18 PM UTC
1 product affected across 1 vendorDedecms

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Severity
MEDIUM6.3
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (5)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/393317
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/393317/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-76800
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/880081
Exploit
Source: cverecord
https://uvxbywu62qm.feishu.cn/wiki/TKqDwJGYaiBVXpk3EtFcdjRDnsg?from=from_copylink

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-434CWE-284

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