Security readout for executives and security teams
Plain-English summary
CVE-2018-20594 is a reflected cross-site scripting issue reported in hsweb 3.0.4. A user-supplied type parameter was not checked in FlowableModelManagerController.java, which could let script content run in a victim's browser if they interact with a crafted request.
Executive priority
Treat as a targeted web-application remediation item. It is not supported as actively exploited, but reflected XSS can create account or administrative-session risk if the affected interface is used by privileged users.
Technical view
The CVE record describes missing type parameter checking in FlowableModelManagerController.java, resulting in reflected XSS in hsweb 3.0.4. No CVSS, CWE, affected CPE, fixed release, or vendor mitigation details are included in the provided sources.
Likely exposure
Exposure appears limited to organizations running hsweb 3.0.4 with the affected Flowable model manager route reachable by users or administrators. The bundle does not identify hosted services, default exposure, or affected CPEs.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not in KEV. Public references include a GitHub issue and commit, but the bundle does not provide exploit details or evidence of in-the-wild abuse.
Researcher notes
Evidence is sparse: the CVE identifies hsweb 3.0.4, the vulnerable controller, and missing type parameter checking, but omits CVSS, CWE, CPEs, fixed version, and detailed advisory text. Analysis should be validated against the linked issue and commit.
Mitigation direction
- Identify whether hsweb 3.0.4 is deployed in any internal or internet-facing environment.
- Review the referenced vendor GitHub issue and commit for the appropriate code update.
- Apply vendor-supported updates or fixes when available for the deployed hsweb branch.
- Restrict access to affected management routes until remediation is confirmed.
- Ensure input validation and output encoding cover the type parameter path.
Validation and detection
- Confirm whether FlowableModelManagerController.java exists in deployed hsweb code.
- Check whether type parameter validation from the referenced commit is present.
- Verify affected routes require appropriate authentication and are not broadly exposed.
- Review application logs for unusual requests to Flowable model manager endpoints.
- Retest with approved XSS-safe validation methods only in authorized environments.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-20594 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/hs-web/hsweb-framework/commit/b72a2275ed21240296c6539bae1049c56abb542fCVE reference · x_refsource_MISC
- https://github.com/hs-web/hsweb-framework/issues/107CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.