EUVD-2026-54430
GHSA-jrwc-g36x-gqc7
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/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
Network-reachable, no privileges required, user interaction needed to click crafted link; scope changes to external system (victim browser/session), with low confidentiality and integrity impact from phishing and header injection.
Primary rating from Vendor (NCSC.ch).
CVSS VectorVendor: NCSC.ch
Lifecycle Timeline
1DescriptionCVE.org
The Webbox of TeamDavid by Tobit Laboratories AG constructs redirect URLs using user-supplied input, which is appended to the redirect target in a 302 HTTP response. By using URL-encoded characters such as “%2e” (representing a dot), an attacker can manipulate the portion of the URL following the top-level domain (TLD). If a similar, registerable TLD exists (for example, if “.com” is the application’s domain, and “.company” is available for registration), an attacker can craft a URL to redirect users to a malicious “.company” domain. By using URL-encoded line feeds, it becomes possible to insert arbitrary response headers in the server's HTTP response.
This issue affects TeamDavid through Rollout 524.
AnalysisAI
Open redirect and HTTP response header injection in the Webbox component of TeamDavid (by Tobit Laboratories AG) allow unauthenticated network attackers to manipulate 302 redirect responses by supplying encoded characters in user-controlled URL parameters. Using URL-encoded dots (%2e), an attacker can steer victims toward attacker-registered lookalike TLD domains (e.g., redirecting from a .com application to an attacker-owned .company domain), while URL-encoded line feeds enable HTTP response splitting to inject arbitrary headers. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The Webbox component of TeamDavid must be network-accessible and must expose a redirect endpoint that appends user-supplied input to a Location header value without sanitizing URL-encoded characters. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.3 (Medium) reflects AV:N/AC:L/AT:N/PR:N/UI:P - network-reachable, low complexity, no attack prerequisites, no privileges required, but dependent on a victim clicking a crafted link. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade TeamDavid beyond Rollout 524 by consulting vendor release notes at https://david.tobit.software/releasenotes to identify the specific remediated rollout version; the exact patched version is not confirmed in the available data and must be verified with Tobit Laboratories AG. … Detailed patch versions, workarounds, and compensating controls in full report. |
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