CVE-2026-76985Network attack vectorHinoki check available

Cross-site scripting via unescaped Palette attributes

Published Aug 31, 2026 · Updated Aug 31, 2026

Cross-site scripting in affected Apache Wicket releases allows remote authenticated users to execute script through crafted Palette data. AbstractOptions writes names and values returned by getAdditionalAttributes directly into option tags without HTML attribute escaping. Exposure requires an application override of an additional-attribute method to return attacker-influenced data; the defaults return null, so unchanged Palette use is not affected.

CVSS severity5.1
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Cross-site scripting in affected Apache Wicket releases allows remote authenticated users to execute script through crafted Palette data. AbstractOptions writes names and values returned by getAdditionalAttributes directly into option tags without HTML attribute escaping. Exposure requires an application override of an additional-attribute method to return attacker-influenced data; the defaults return null, so unchanged Palette use is not affected.

The record

CVE
CVE-2026-76985
Published
Aug 31, 2026
Updated
Aug 31, 2026
Vendor
The Apache Software Foundation
Product
Apache Wicket
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0 <=10.10.0
  2. Affected versionversion=8.0.0 <=8.18.0
  3. Affected versionversion=9.0.0 <=9.23.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Wicketversion=10.0.0 <=10.10.0; version=8.0.0 <=8.18.0; version=9.0.0 <=9.23.0

Published CVSS scores

5.1Apache Software FoundationCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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