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DedeCMS EUVDEUVD-2026-43279

| CVE-2026-15533 LOW
Code Injection (CWE-94)
2026-07-13 VulDB GHSA-5jpp-cp4j-9m54
Code Injection PHP RCE Dedecms
2.0
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.0 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.2 HIGH

Network-reachable but requires high-privilege admin auth (PR:H); code injection enabling PHP RCE justifies High C/I/A despite vendor's Low assignment.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

3
Severity Changed
Jul 13, 2026 - 06:22 NVD
MEDIUM LOW
CVSS changed
Jul 13, 2026 - 06:22 NVD
5.1 (MEDIUM) 2.0 (LOW)
Analysis Generated
Jul 13, 2026 - 05:52 vuln.today

DescriptionCVE.org

A security flaw has been discovered in DedeCMS 5.7.118. Impacted is an unknown function of the file /plus/search.php of the component Column Management. Performing a manipulation of the argument Column Name results in code injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.

AnalysisAI

Code injection in DedeCMS 5.7.118 exposes high-privileged remote attackers to arbitrary PHP code execution via the Column Name parameter in the Column Management component of /plus/search.php. The exploit document on GitHub describes a cache file writing mechanism through which attacker-supplied input is persisted to disk and subsequently executed by the PHP runtime. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Obtain admin credentials via phishing or reuse
Delivery
Authenticate to DedeCMS backend
Exploit
Navigate to Column Management in /plus/search.php
Install
Inject PHP payload into Column Name field
C2
Application writes payload to server-side cache file
Execute
Trigger cache file execution via HTTP request
Impact
Achieve remote code execution on web server
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Vulnerability AssessmentAI

Exploitation Exploitation strictly requires an authenticated session with high-privilege (administrator-level) access to the DedeCMS backend, as confirmed by the CVSS PR:H metric. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 5.1 (AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L) places this at medium severity, but the impact ratings warrant scrutiny: the vulnerability is tagged RCE and references a cache file write primitive, yet the vendor-assigned impact is Low across all three pillars. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has obtained valid DedeCMS administrator credentials - through credential stuffing, phishing, or reuse from a prior breach - logs into the backend and navigates to the Column Management interface. They supply a PHP payload as the Column Name value, which the application writes into a cache file on disk. …
Remediation No vendor-released patch has been identified at time of analysis; monitor VulDB (https://vuldb.com/vuln/377878) and DedeCMS official channels for a fix. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-43279 vulnerability details – vuln.today
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