Security readout for executives and security teams
Plain-English summary
CVE-2026-42224 is a reflected cross-site scripting issue in Icinga's ipl/web component. A crafted search request can cause JavaScript to run in a victim's browser in the context of Icinga Web. The published fix is to update to ipl/web 0.13.1 or 0.10.3.
Executive priority
Prioritize patching in Icinga Web environments because successful exploitation could affect confidentiality and integrity in a monitoring console context. No active exploitation is evidenced in the supplied sources.
Technical view
The issue is CWE-79 reflected XSS in malformed search handling in ipl/web before 0.13.1 and before 0.10.3. CVSS 3.1 is 7.6 with network attack vector, high complexity, high privileges required, user interaction required, and changed scope.
Likely exposure
Exposure is limited to environments using Icinga ipl/web in the vulnerable version ranges: >=0.11.0 and <0.13.1, or versions before 0.10.3.
Exploitation context
The source bundle does not show KEV listing or confirmed active exploitation. Successful abuse requires a victim to visit a specifically prepared website, after which injected JavaScript may execute in the Icinga Web context.
Researcher notes
The advisory attributes exploitation to malformed search requests and victim interaction via a prepared website. Avoid assuming broader Icinga product impact beyond ipl/web. The source bundle provides fixed versions and a patch commit but no public exploit status.
Mitigation direction
- Upgrade ipl/web to version 0.13.1 or 0.10.3.
- Confirm deployed Icinga Web components no longer include vulnerable ipl/web versions.
- If upgrade timing is constrained, check Icinga guidance for supported temporary mitigations.
- Review dependency lockfiles and deployment artifacts for vulnerable ipl/web ranges.
Validation and detection
- Inventory installed ipl/web versions across Icinga Web deployments.
- Verify package metadata shows ipl/web 0.13.1, 0.10.3, or later fixed versions.
- Confirm the vulnerable search-handling commit is present through vendor package provenance.
- Review application security logs for suspicious malformed search requests without treating absence as proof.
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.
CWE-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-42224 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
- High
- CVSS
- 7.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
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.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H16GitHub_MVulnerability scoring details
Base CVSS 3.1 score
7.6HighVector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Icinga/ipl-web/security/advisories/GHSA-55wf-5m3q-6jjfCVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/Icinga/ipl-web/commit/f387e92504d7a03bb857d1aee9b7410e06dd065dCVE reference, GitHub_M · x_refsource_MISC
- https://github.com/Icinga/ipl-web/releases/tag/v0.10.3CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/Icinga/ipl-web/releases/tag/v0.13.1CVE reference, GitHub_M · 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.