Medium severity · published Aug 20, 2026
CVE-2026-76800
DeDeCMS select_media_post.php unrestricted upload
6.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
DeDeCMS · Dedecms
3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-76800
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-76800
uvxbywu62qm.feishu.cn
https://uvxbywu62qm.feishu.cn/wiki/TKqDwJGYaiBVXpk3EtFcdjRDnsg?from=from_copylink
vuldb.com
https://vuldb.com/cve/CVE-2026-76800
vuldb.com
https://vuldb.com/submit/880081
vuldb.com
https://vuldb.com/vuln/393317
vuldb.com
https://vuldb.com/vuln/393317/cti
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