EUVD-2026-58668
GHSA-pfrg-4vg3-g532
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/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 endpoint requires authenticated low-privilege access (PR:L); scope change (S:C) reflects SSRF reaching systems beyond TIS; no integrity or availability impact applies.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/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
Lifecycle Timeline
3DescriptionCVE.org
Datavane TIS v5.0.0 contains an XML external entity (XXE) injection vulnerability that allows authenticated attackers to perform server-side request forgery and out-of-band file exfiltration by supplying a crafted taskScript payload to the doEditWorkflow endpoint, which processes XML through an unhardened DocumentBuilderFactory with external entities and DTD loading enabled. Attackers can send a malicious XML document containing an external DTD reference to the edit_workflow action, causing the server to issue outbound HTTP requests to attacker-controlled infrastructure and exfiltrate local files readable by the TIS process user, including configuration files and Derby database credentials.
AnalysisAI
XXE injection in Datavane TIS v5.0.0 exposes authenticated attackers a path to SSRF and out-of-band file exfiltration against the server hosting the application. The doEditWorkflow endpoint accepts a taskScript parameter parsed by an unhardened Java DocumentBuilderFactory that resolves external entities and loads external DTDs, allowing a crafted XML payload to trigger outbound HTTP requests to attacker-controlled infrastructure and read local files accessible to the TIS process user, including configuration files and Derby database credentials. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a valid authenticated session with at least low-privilege user access to the Datavane TIS application, consistent with the CVSS 4.0 PR:L metric. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 8.3 with vector AV:N/AC:L/AT:N/PR:L/UI:N reflects a network-accessible, low-complexity attack requiring only a valid authenticated session - no elevated privileges are needed. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An authenticated TIS user submits a `taskScript` payload to the `doEditWorkflow` endpoint containing an XML document with an external DTD reference pointing to an attacker-controlled HTTP server; the reference includes an entity that reads a local file such as a Derby database credential file using `file://`. The TIS server's `DocumentBuilderFactory` resolves the external entity, issues an outbound HTTP request carrying the file contents to the attacker's listener, completing the exfiltration without requiring any interaction from other users or elevated privileges beyond a standard TIS account. … |
| Remediation | Apply the upstream hardening fix from commit 2a84a1b84218a303e3e0a4823023363d5a7abfa1 available at https://github.com/datavane/tis/commit/2a84a1b84218a303e3e0a4823023363d5a7abfa1, which disables DTD processing and external entity resolution in the `DocumentBuilderFactory` used by the `doEditWorkflow` code path. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all instances of Datavane TIS v5.0.0 and obtain the vendor-released patch; concurrently review application logs for suspicious XML payloads to the doEditWorkflow endpoint to identify any exploitation attempts. …
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