CVE-2026-42224: Ipl/web Cross-Site Scripting Vulnerability

HIGH
Advisory Identifier: GHSA-55wf-5m3q-6jjf
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CVSS 7.6
CWE-79
Published
Advisory Summary

CVE-2026-42224 is a HIGH (CVSS 7.6) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting Ipl/web libraries in the Packagist ecosystem. The issue involves ipl/web is vulnerable to reflected xss by malformed search requests. Remediation is available by upgrading affected packages to version 0.13.1, 0.10.3.

CVE-2026-42224 at a Glance

CVE Identifier CVE-2026-42224
GHSA Identifier GHSA-55wf-5m3q-6jjf
Severity HIGH
CVSS v3.1 Base Score 7.6
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product Ipl/web
Package Ecosystem Packagist
Published Date
Last Updated

Security Impact

CVSS: 7.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required High (PR:H)
User Interaction Required (UI:R)
Scope Changed (S:C)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2026-42224

To remediate this vulnerability, upgrade all affected Ipl/web dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ipl/web fixed: 0.13.1 
Upgrade ipl/web to 0.13.1
ipl/web fixed: 0.10.3 
Upgrade ipl/web to 0.10.3
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for ipl/web

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-42224, inspect your project dependencies for Ipl/web:

inspect dependencies for ipl/web

Analyze the terminal output to locate any version of Ipl/web in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.13.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In Ipl/web, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact The vulnerability allows an attacker to inject malicious Javascript into a victim's browser to run it in the context of Icinga Web. The victim needs to visit a specifically prepared website and may have no immediate chance to notice any wrongdoing. ### Patches Version 0.13.1 includes a fix for this. It will be published as part of `icinga-php-library` version 0.19.2. ### Workarounds Enable the Content-Security-Policy (CSP) in the general configuration of Icinga Web available since version 2.12.0. ### References None

CVE-2026-42224 Affected Ipl/web Versions

2 component(s)
Fixed Versions:
0.13.10.10.3
Product / Package Ecosystem Affected Versions Fixed Version
ipl/web
 Packagist
≥ 0.11.0
< 0.13.1
0.13.1
ipl/web
 Packagist
< 0.10.3
0.10.3

References

GitHub Advisory / Wiki ADVISORY
https://github.com/Icinga/ipl-web/security/advisories/GHSA-55wf-5m3q-6jjf
NVD — CVE-2026-42224 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-42224
Security Fix Commit FIX COMMIT
https://github.com/Icinga/ipl-web/commit/f387e92504d7a03bb857d1aee9b7410e06dd065d
Ipl/web Source Repository REPOSITORY
https://github.com/Icinga/ipl-web
Ipl/web Release RELEASE
https://github.com/Icinga/ipl-web/releases/tag/v0.10.3
Ipl/web Release RELEASE
https://github.com/Icinga/ipl-web/releases/tag/v0.13.1

Frequently Asked Questions

What is CVE-2026-42224?
CVE-2026-42224 is a security vulnerability in Ipl/web involving ipl/web is vulnerable to reflected XSS by malformed search requests under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which Ipl/web versions are affected?
Affected versions include releases prior to 0.13.1, 0.10.3 across affected packages: ipl/web.
What version fixes CVE-2026-42224?
Upgrading to 0.13.1, 0.10.3 (or the latest patched release for your respective branch) resolves the vulnerability.
Is ipl/web affected?
Yes, ipl/web is affected in releases prior to 0.13.1, 0.10.3. Upgrade your dependency to 0.13.1, 0.10.3 or later.
What is the CVSS score of CVE-2026-42224?
CVE-2026-42224 has a CVSS v3.1 base score of 7.6 (HIGH) with vector string CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H.
What CWE is associated with CVE-2026-42224?
CVE-2026-42224 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check Packagist dependencies for CVE-2026-42224?
Run the dependency tree command: 'inspect dependencies for ipl/web'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-55wf-5m3q-6jjf",
  "modified" : "2026-06-09T10:44:51Z",
  "published" : "2026-04-29T21:01:55Z",
  "aliases" : [ "CVE-2026-42224" ],
  "summary" : "ipl/web is vulnerable to reflected XSS by malformed search requests",
  "details" : "### Impact\nThe vulnerability allows an attacker to inject malicious Javascript into a victim's browser to run it in the context of Icinga Web. The victim needs to visit a specifically prepared website and may have no immediate chance to notice any wrongdoing.\n\n### Patches\nVersion 0.13.1 includes a fix for this. It will be published as part of `icinga-php-library` version 0.19.2.\n\n### Workarounds\nEnable the Content-Security-Policy (CSP) in the general configuration of Icinga Web available since version 2.12.0.\n\n### References\nNone",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "ipl/web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.11.0"
      }, {
        "fixed" : "0.13.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.13.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Packagist",
      "name" : "ipl/web"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.10.3"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.10.2"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/Icinga/ipl-web/security/advisories/GHSA-55wf-5m3q-6jjf"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-42224"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Icinga/ipl-web/commit/f387e92504d7a03bb857d1aee9b7410e06dd065d"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/Icinga/ipl-web"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Icinga/ipl-web/releases/tag/v0.10.3"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/Icinga/ipl-web/releases/tag/v0.13.1"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-29T21:01:55Z",
    "nvd_published_at" : "2026-05-08T23:16:35Z"
  }
}