Medium severity · published Oct 25, 2026
CVE-2026-116063
DedeCMS update_guide.php require_once code injection
New
4.7
CVSS
0.3%
EPSS
No
On KEV
Description
A weakness has been identified in DedeCMS up to 5.7.118. Impacted is the function require_once of the file dede/update_guide.php. This manipulation of the argument vtime causes code injection. Remote exploitation of the attack is possible. The exploit has been made available to the public and could be used for attacks.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DE
DedeCMS · Dedecms
5.7.118 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116063
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116063
github.com
https://github.com/SDshadow/cve
github.com
https://github.com/SDshadow/cve/tree/main/DedeCMS/V5.7.118-update_guide-RCE/poc
vuldb.com
https://vuldb.com/cve/CVE-2026-116063
vuldb.com
https://vuldb.com/submit/999433
vuldb.com
https://vuldb.com/vuln/426146
vuldb.com
https://vuldb.com/vuln/426146/cti
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