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stumasy CVE-2026-14749

| EUVDEUVD-2026-41755 MEDIUM
Code Injection (CWE-94)
2026-07-05 VulDB GHSA-gq7f-p38f-cwj8
Code Injection PHP RCE Stumasy
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
10.0 CRITICAL

Network-accessible eval() injection with no authentication or complexity barriers; PHP code execution implies full confidentiality, integrity, and availability impact on the server.

3.1 AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/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:N/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
None
User Interaction
None
Scope
X

Lifecycle Timeline

2
CVSS changed
Jul 05, 2026 - 13:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Analysis Generated
Jul 05, 2026 - 13:21 vuln.today

DescriptionCVE.org

A vulnerability was identified in mjperpinosa stumasy up to 327d1b0f2915ba79d7ef8ebb74553e987609d9be. Impacted is the function eval of the file application/pages/imba_calculator/calculate.php. The manipulation of the argument mathematical_sentence leads to code injection. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The project was informed of the problem early through an issue report but has not responded yet.

AnalysisAI

Remote PHP code injection in stumasy's calculator module allows unauthenticated network attackers to execute arbitrary server-side code by manipulating the mathematical_sentence parameter passed unsanitized into PHP's eval() function in calculate.php. A public proof-of-concept exploit exists (GitHub issue #5), and no patch has been released - the project maintainer has not responded to the disclosure. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Identify publicly accessible calculate.php endpoint
Delivery
Craft HTTP request with PHP payload in mathematical_sentence parameter
Exploit
Server passes unsanitized input to eval()
Execution
Arbitrary PHP code executes as web server process
Impact
Attacker achieves remote code execution on host
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Vulnerability AssessmentAI

Exploitation The calculate.php endpoint (application/pages/imba_calculator/calculate.php) must be reachable over the network - no authentication is required per CVSS PR:N. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms this is trivially reachable: no authentication, no complexity barrier, no user interaction, over the network. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker identifies a stumasy instance with the imba_calculator feature publicly accessible, sends a crafted HTTP request to calculate.php with a mathematical_sentence parameter containing embedded PHP code (e.g., a system() call or web shell payload), and the server's eval() function executes the injected code with the privileges of the web server process. A public proof-of-concept demonstrating this technique exists at https://github.com/mjperpinosa/stumasy/issues/5, lowering the skill requirement to near-zero.
Remediation No vendor-released patch has been identified at time of analysis - the project maintainer has not responded to the disclosure reported via GitHub issue #5 (https://github.com/mjperpinosa/stumasy/issues/5). … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-14749 vulnerability details – vuln.today
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