Cross-site Scripting (XSS)Weakness · CWE-79

CVE-2026-42224

HIGH · 7.6 CVSS v3.1 Published 2026-05-08
Patch available
A vendor patch is available. No clean upgrade release — apply the published patch.
See remediation →
80/100
Remediation priority · High
Remotely reachable Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
ipl/web is a set of common web components for php projects. Prior to versions 0.13.1 and 0.10.3, 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. This issue has been patched in versions 0.13.1 and 0.10.3.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-79

Untrusted input is placed into a web page without being neutralised, so an attacker's markup or script executes in another user's browser. That can hijack sessions, capture keystrokes, or silently perform actions as the victim. Fixing it properly means context-aware output encoding everywhere data meets HTML, backed by a content-security policy as a second line of defence.

General guidance for the cross-site scripting (xss) class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
High
Privileges
High
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Patch available Apply the vendor patch
Vendor patch github.com →
Recommended fix High confidence

ipl/web version 0.13.1 or 0.10.3 (depending on your release branch)

  1. 1. Identify the current version of ipl/web in your PHP project (check your composer.json or composer.lock file)
  2. 2. Determine which release branch you are on: if using version 0.11.x or later, upgrade to 0.13.1; if using 0.10.x or earlier, upgrade to 0.10.3
  3. 3. Run 'composer require ipl/web:0.13.1' (for 0.11+ branches) or 'composer require ipl/web:0.10.3' (for 0.10.x branches)
  4. 4. Run 'composer update ipl/web' to install the patched version
  5. 5. Test your application thoroughly to verify the XSS vulnerability is remediated and no regressions were introduced

Generated from the published advisory — verify against the referenced sources before acting.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-42224 in production — separate from our analysis above.

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What this is

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What belongs here
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  • Version or environment caveats, and links to real fixes
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