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CVE-2026-111089

Apache Wicket: XSS via a resource bundle text written unescaped into generated JavaScript and markup

Products / packages Apache Software Foundation Apache Wicket

Published

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Severity and exploitation

Not in CISA KEV

KEV coverage does not rule out exploitation.

KEV checked 15/11/2026, 00:05:31 UTC
apache · CVSS:4.0 · 7.6
Assessment vectorCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Severity

high7.6

CVSS measures technical severity, not the likelihood of an attack.

Known exploitation

Not listed in the checked CISA KEV catalog

Absence from CISA KEV does not rule out attacks.

Public exploit

Not established by this record

Missing evidence does not mean no public exploit exists.

Remediation

Fix status not established

No structured fix or guidance is available here. Check the latest publisher advisory.

What this means

Apache Wicket versions 8.0.0 through 8.19.0, 9.0.0 through 9.24.0, and 10.0.0 through 10.11.0 have a cross-site scripting weakness due to unescaped resource bundle texts written into generated JavaScript and markup. An attacker with influence over a resource bundle entry can run script. The issue affects Apache Wicket's wicket-core and wicket-extensions packages.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Attack conditions

No attack-condition excerpt has been identified here. Review the full source description and references for authentication, network access, and configuration requirements.

Review supporting sources →

Affected versions

Check the exact model, release, and any platform requirements against your installation.

Apache Software Foundation · apache

Apache Wicket

3 ranges
apache version evidence

Package identity

pkg:maven/org.apache.wicket/wicket-coreExplore org.apache.wicket:wicket-core →

Identity supplied by apache. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

8.0.0 → through 8.19.0

semver versions

9.0.0 → through 9.24.0

semver versions

10.0.0 → through 10.11.0

semver versions

unaffected

unknown

Other versions: unaffected

Automatic dependency matching is unavailable for this record. Use the product evidence and publisher’s instructions to check your installation.

What to do

Compare your installed product and version with the affected versions above. A matching product name alone does not confirm exposure.

No structured fix or remediation guidance is available here. Check the full source description and vendor’s latest advisory for a patch or workaround; do not assume another version is safe.

cve.new guidance unless attributed to a publisher. This page does not inspect your installation.

Public exploit evidence

No public exploit reference is identified in the imported evidence. This is not a claim that no exploit exists.

Original source description

Read the full publisher description

Apache Wicket reads texts from the application's resource bundles — a localized label, a css class name — and writes some of them into the JavaScript and the markup it generates for a component. Those texts are placed inside single-quoted JavaScript string literals and inside quoted attribute values without being escaped for that context, so a text containing a quote ends the literal or the attribute, and what follows is parsed as script or as markup in the application's origin when the page loads.

A resource bundle entry is authored for the application and does not say where the framework will write it. The same key is read by the framework into element text, where Wicket escapes it, and into the contexts below, where it did not. A text containing an apostrophe, which is ordinary in several languages, is enough to break the page; a text under the influence of another party is enough to run script.

In org.apache.wicket:wicket-core, org.apache.wicket.markup.html.form.upload.MultiFileUploadField writes the org.apache.wicket.mfu.delete message into a JavaScript string literal, and org.apache.wicket.markup.html.form.Form writes the hidden-fields css class into the class attribute of the container it renders for its hidden fields; on 8.0.0 through 8.19.0 and 9.0.0 through 9.24.0 Form#appendDefaultButtonField writes the same css class into a second container. In org.apache.wicket:wicket-extensions, UploadProgressBar writes its UploadProgressBar.starting text into a JavaScript string literal, FilterForm writes the hidden-fields css class into the class attribute of its hidden input markup, and on 9.0.0 through 9.24.0 and 10.0.0 through 10.11.0 TrapFocusBehavior writes its current css class into a JavaScript string literal.

The Content-Security-Policy that Apache Wicket 9.x and 10.x send by default does not prevent the JavaScript cases: the generated script is written into a script element carrying the per-response nonce, so the injected code is part of a script the policy admits. It does prevent an inline event handler injected through the attribute cases.

This issue affects Apache Wicket: from 8.0.0 through 8.19.0, from 9.0.0 through 9.24.0, from 10.0.0 through 10.11.0. Users of Apache Wicket 7.x or older, which are no longer supported, should upgrade to a supported version. Users are recommended to upgrade to version 8.20.0, 9.25.0 or 10.12.0, which fix the issue.

References

1 sources
lists.apache.org/thread.html/xyp4sm5mm7s618fktstb22577qxbmqw8
Vendor advisoryapache

Inside the record

Evidence available

Package identity
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-111089

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-79 ↗

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

apache

Related →
Contributing organizations · 2
apache

Assigning organization

2026-11-01
CISA-ADP

Additional data publisher

2026-11-06

Timeline

All times UTC

  1. Advisory published

    Publication date supplied by the source.

  2. Source updated

    Latest modification date supplied by the source.

  3. Last imported by cve.new

    Latest catalog import, not the date we first saw this advisory.

What changed

Follow changes
  1. CVE · CVE-2026-111089

    Observed 2026-11-06T14:58:10.264Z · upstream updated 2026-11-06T14:38:33.160Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-11-06T14:38:19.026084Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.