CVE-2026-42509 json
Apache Wicket: crafted strings can break out of the JavaScript sequence
published 6mo ago modified 14d ago also EUVD-2026-27556 , GHSA-5x9h-93gp-chpj
- cvss
- 6.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 29%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.apache.wicket:wicket-parent 10.9.0
- apache wicket 10.9.0
- org.apache.wicket wicket-parent 10.9.0
Is CVE-2026-42509 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6mo ago
Exploit prediction
0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| GitHub | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| CNA | 3.1 | 6.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.wicket:wicket-parent | >=8.0.0-M1, <=8.17.0 >=9.0.0-M1, <=9.22.0 >=10.0.0-M1, <10.9.0 |
10.9.0 |
Affected products
- Apache Software Foundation Apache Wicket
Classification
- Weakness
-
- CWE-79 Improper Neutralization of Input During Web Page Generation
References
-
lists.apache.org
/thread/52nrq4tt07gxz4r6sj5gyocz5s6bprjp
vendor-advisory, web
-
openwall.com
/lists/oss-security/2026/05/06/2
web, mailing-list, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-42509
advisory
-
github.com
/apache/wicket
package
Sources
- CVE List CVE-2026-42509
- GitHub Advisory GHSA-5x9h-93gp-chpj
- NVD CVE-2026-42509
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.