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Response snapshot Nov 2, 2026, 02:36 UTC

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VulnerabilityCVE-2026-111089

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...

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.

At a glance

Exploited
Not known
Severity
7.6 High (CVSS 4.0)
Chance of exploitation
Not estimated
Sources
1 source

What to do

Check the vendor advisory for affected versions and fixes.

Read NVD CVE-2026-111089 (opens a new tab)

What happened

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.

Continue reading

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.

Scores and how they were measured

CVSS base severity

7.6

Version 4.0As of

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Measurement source (opens a new tab)

How bad it is if exploited. Not a prediction of exploitation or proof you are exposed.

EPSS probability

Not available

A model's estimate of exploitation in the next 30 days, not certainty or your own risk.

Sources

  1. Primary source

    NVD CVE-2026-111089 (opens a new tab)

    NVD record: description, CVSS (the CNA score is preferred), affected products, and publication date. Not evidence of exploitation.

    Published Checked

  2. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

  3. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

  4. Primary source

    NVD CVE API 2.0 (opens a new tab)

    The NVD API page that supplied this CVE record.

    Published Date not suppliedChecked

Cite this record

For factual claims, cite the primary sources above; cite KEVWire for its compilation, dates, and classifications.

APA

KEVWire. (2026, November 1). 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... (CVE-2026-111089). https://kevwire.com/record/CVE-2026-111089

MLA

"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... (CVE-2026-111089)." KEVWire, 1 Nov. 2026, kevwire.com/record/CVE-2026-111089.

Chicago

KEVWire. "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... (CVE-2026-111089)." Last modified November 1, 2026. https://kevwire.com/record/CVE-2026-111089.

Evidence summary (plain text)

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... (Nov 1, 2026).
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.
CVSS 7.6 (version 4.0; evidence as of Nov 1, 2026; https://nvd.nist.gov/vuln/detail/CVE-2026-111089).
Sources:
NVD CVE-2026-111089: https://nvd.nist.gov/vuln/detail/CVE-2026-111089
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-11-01T23:15:57.054Z&lastModEndDate=2026-11-02T00:50:55.984Z&resultsPerPage=500&startIndex=0
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-11-01T22:40:59.243Z&lastModEndDate=2026-11-02T00:15:55.446Z&resultsPerPage=500&startIndex=0
NVD CVE API 2.0: https://services.nvd.nist.gov/rest/json/cves/2.0?lastModStartDate=2026-11-01T22:05:59.838Z&lastModEndDate=2026-11-01T23:40:56.426Z&resultsPerPage=500&startIndex=0
Record ID: CVE-2026-111089.
Record origin: Ingested record.
AI evidence: Not assessed.
Known exploitation: Not assessed.
Zero-day status: Not assessed. KEV membership alone does not establish zero-day status.
About this data

This record was ingested from a data source. Retrieved: Nov 2, 2026, 00:50 UTC. Ingestion is not an independent editorial investigation.

NVD status: Received. Publication in the NVD is not evidence of exploitation.

A CISA KEV listing documents known exploitation, not necessarily a zero-day; absence from the catalog does not prove a vulnerability has never been exploited.

Technology tags indicate possible relevance, not verified exposure. Confirm the affected product, version, and configuration against your own inventory; KEVWire does not scan your systems.

A personal reading checklist on this device, not verified remediation.

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Record details

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