EUVD-2026-33568
GHSA-49hc-rwwc-mfv5
Severity 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
2DescriptionCVE.org
A vulnerability was detected in Mettle sendportal up to 3.0.1. This affects an unknown part of the file /webview/ of the component Campaign Handler. The manipulation of the argument content results in cross site scripting. The attack can be launched remotely. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Stored or reflected cross-site scripting in sendportal's Campaign Handler allows an authenticated low-privilege remote attacker to inject malicious script via the 'content' argument at the /webview/ endpoint, affecting all versions up to and including 3.0.1. A victim user must interact with the crafted content for the payload to execute, resulting in low-integrity impact with no confidentiality or availability consequences. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The attacker must hold a valid low-privilege authenticated account on the target sendportal instance (PR:L per CVSS vector) - unauthenticated exploitation is not possible based on available data. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 3.5 (Low) accurately reflects the constrained impact profile: integrity-only (I:L), no confidentiality or availability impact, and the requirement for both low-privilege authentication (PR:L) and victim interaction (UI:R). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker with a low-privilege authenticated account on a sendportal instance crafts a campaign with a malicious JavaScript payload embedded in the 'content' field and submits it through the Campaign Handler. When a higher-privileged user or intended recipient opens the campaign preview at the /webview/ endpoint - for example, during a content review workflow - the injected script executes in their browser within the application's origin context. … |
| Remediation | No vendor-released patch has been identified at time of analysis - the vendor was notified via a responsible disclosure issue report but has not responded, and no fixed version is available. … Detailed patch versions, workarounds, and compensating controls in full report. |
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