What’s Vulnerable › Vulnerabilities
CVE-2020-11976
- Severity: high (CVSS 7.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-08-11 · updated 2026-06-17
- Weakness: CWE-552
Description
By crafting a special URL it is possible to make Wicket deliver unprocessed HTML templates. This would allow an attacker to see possibly sensitive information inside a HTML template that is usually removed during rendering. Affected are Apache Wicket versions 7.16.0, 8.8.0 and 9.0.0-M5
Affected products
- Apache Fortress: 2.0.5
- Apache Software Foundation Apache Wicket: before 7.17.0; from 8.0.0 before 8.9.0; 9.0.0-milestone1, 9.0.0-milestone2, 9.0.0-milestone3, 9.0.0-milestone4, 9.0.0-milestone5 — fixed in 7.17.0, 8.9.0
How to fix
Upgrade to a fixed version: Apache Software Foundation Apache Wicket 7.17.0, 8.9.0. Check the vendor advisory for mitigations.
References
- https://lists.apache.org/thread.html/r05340178680eb6b9d4d40d56b5621dd4ae9715e6f41f12ae2288ec49%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/r104eeefeb1e9da51f7ef79cef0f9ff12e21ef8559b77801e86b21e16%40%3Cusers.wicket.apache.org%3E
- https://lists.apache.org/thread.html/r982c626dbce5c995223c4a6ddd7685de3592f8d65ba8372da1f3ce19%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/rd0f36b83cc9f28b016ec552f023fb5a59a9ea8db56f2b9dcc6a2f6b7%40%3Ccommits.directory.apache.org%3E
- https://lists.apache.org/thread.html/rd26cae6e30b205e09e4b511d3d962d4f677c0c604f737997ce1b2f22%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/rdec0a43afdca59c10416889e07267f3d2fdf4ab929a6e22a2659b6ff%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/re4af65851bf69605cfb68be215eba36d4cdc1a90b95fbc894799d923%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/reb7ea8141c713b5b19eaf34c00f43aaebf5a1c116130f763c42bdad1%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/r05340178680eb6b9d4d40d56b5621dd4ae9715e6f41f12ae2288ec49%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/r104eeefeb1e9da51f7ef79cef0f9ff12e21ef8559b77801e86b21e16%40%3Cusers.wicket.apache.org%3E
- https://lists.apache.org/thread.html/r982c626dbce5c995223c4a6ddd7685de3592f8d65ba8372da1f3ce19%40%3Cdev.directory.apache.org%3E
- https://lists.apache.org/thread.html/rd0f36b83cc9f28b016ec552f023fb5a59a9ea8db56f2b9dcc6a2f6b7%40%3Ccommits.directory.apache.org%3E
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