Security readout for executives and security teams
Plain-English summary
CVE-2018-11562 is a reflected XSS issue in MISP 2.4.91. A logged-in user could be exposed if they follow a malicious event-view link and then use the deleted attributes quick filter. Business risk is mainly compromise of user trust, session-context actions, or sensitive threat-intelligence workflows.
Executive priority
Treat this as a targeted workflow risk for MISP users, not a broad internet-scale emergency based on available evidence. Prioritize remediation if MISP is used for sensitive threat-intelligence operations or by high-privilege analysts.
Technical view
The CVE describes reflected XSS in MISP 2.4.91 within app/View/Elements/eventattribute.ctp. The vulnerable path involves an event view link and subsequent deleted attributes quick-filter interaction. The source bundle does not provide CVSS, CWE, affected CPEs, or detailed patch version information beyond a referenced MISP commit.
Likely exposure
Exposure is most likely for organizations running MISP 2.4.91, especially where analysts access MISP event views through shared links. The affected-product metadata in the source bundle is incomplete, so asset owners should verify actual deployed MISP versions.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The described attack requires user interaction: clicking a malicious event-view link and then the deleted attributes quick filter. No exploit code or weaponized details are provided in the cited sources.
Researcher notes
Evidence is limited to the CVE description and one MISP commit reference. The bundle does not include CVSS, CWE classification, CPEs, exploit status, or a named fixed release. Avoid expanding scope beyond MISP 2.4.91 without additional vendor evidence.
Mitigation direction
- Identify any deployed MISP 2.4.91 instances.
- Review the referenced MISP commit and vendor guidance for the corrective change.
- Upgrade or patch affected MISP deployments according to official MISP guidance.
- Warn MISP users against opening untrusted event-view links.
Validation and detection
- Confirm the running MISP version on each instance.
- Check whether the referenced eventattribute.ctp fix is present.
- Review MISP access logs for suspicious event-view links if available.
- Verify browser-side protections do not replace server-side remediation.
Public sources used
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-11562 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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/MISP/MISP/commit/10080096879d1076756f62760d6daf582b6db722CVE reference · x_refsource_CONFIRM
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.