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CVE-2026-42509

26
FAUCET Score

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Apache Wicket. This issue affects Apache Wicket: from 8.0.0 through 8.17.0, 9.0.0, from 10.0.0 through 10.8.0. Users are recommended to upgrade to version 10.9.0, which fixes the issue.

First published: May 6, 2026Last modified: May 7, 2026

Impacted Technologies

VendorProductVersion(s)CPE
>= 8.0.0, <= 8.17.0CPE matchmatch criteria
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
>= 9.0.0, <= 9.22.0CPE matchmatch criteria
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*
>= 10.0.0, < 10.9.0CPE matchmatch criteria
cpe:2.3:a:apache:wicket:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 29th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.apache.wicket:wicket-parentFixed in: 10.9.0
apachevendor investigatingvia vendor_rss
View patch

Vendor Advisories (2)

mavenGHSA-5x9h-93gp-chpjmedium

Apache Wicket has a Cross-site Scripting issue

May 6, 2026
apacheapache:www.mail-archive.com/[email protected]/msg11058.html

CVE-2026-42509: Apache Wicket: crafted strings can break out of the JavaScript sequence

May 5, 2026

References

openwall.com / lists/oss-security/2026/05/06/2
Mailing ListThird Party Advisory
lists.apache.org / thread/52nrq4tt07gxz4r6sj5gyocz5s6bprjp
Vendor Advisory