XWiki vulnerable to click-jacking through CSS injection in comments
Impact
It's possible using comments to inject CSS that would transform the full wiki in a link area leading to a malicious page. All versions of XWiki are impacted by this kind of attack.
Patches
The problem has been patched not by preventing injecting CSS in comments, which is currently a feature of XWiki, but by requiring confirmation from users when driving them to untrusted domains after clicking on a link, thus preventing any click-jacking attack. This security measure has been put in place in XWiki 17.9.0, 17.4.6, 16.10.13.
Workarounds
There's no out-of-the-box workaround, but it should be possible to partly reuse the javascript code provided for the security measure in a JSX object inside the wiki, to request the same kind of confirmation.
References
- JIRA ticket: https://jira.xwiki.org/browse/XWIKI-23433
- Documentation of the new security measure: https://www.xwiki.org/xwiki/bin/view/ReleaseNotes/Data/XWiki/17.9.0RC1/Entry006/
- Commit for the security fix: https://github.com/xwiki/xwiki-platform/commit/29cb81f3a5387cf822d7e7534bdd63903275f86b
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
Attribution
Thanks Tomas Keech (Sentrium Security Ltd) for reporting this vulnerability.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | org.xwiki.platform:xwiki-platform-web | >= 17.5.0, < 17.9.0, >= 17.0.0-rc-1, < 17.4.6, < 16.10.13 | 17.9.0, 17.4.6, 16.10.13 |
Referencias
- https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-74rh-c5rh-88vg
- https://nvd.nist.gov/vuln/detail/CVE-2026-26000
- https://github.com/xwiki/xwiki-platform/pull/4645
- https://github.com/xwiki/xwiki-platform/commit/29cb81f3a5387cf822d7e7534bdd63903275f86b
- https://github.com/xwiki/xwiki-platform/commit/7b5a4f8c34d9b1da3d966e17f7dbccabac448e75
- https://github.com/xwiki/xwiki-platform
- https://github.com/xwiki/xwiki-platform/releases/tag/xwiki-platform-17.4.6
- https://jira.xwiki.org/browse/XWIKI-23433
- https://www.xwiki.org/xwiki/bin/view/ReleaseNotes/Data/XWiki/17.9.0RC1/Entry006
- Vector CVSS
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N- Debilidad (CWE)
CWE-1021- Plataforma
- Java / Kotlin (Maven)
- Paquete
org.xwiki.platform:xwiki-platform-web- Publicada
- 12.02.2026
- Actualizado
- 11.10.2026 12:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-74rh-c5rh-88vg - CC BY 4.0
Historial de vulnerabilidades: org.xwiki.platform:xwiki-platform-web
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 15
- Primera → última
- 04.2021 02.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Crítica 5
- Alta 5
- Media 5
Divulgaciones por año
- 2021: 2
- 2022: 6
- 2023: 6
- 2024: 0
- 2025: 0
- 2026: 1
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XWiki vulnerable to click-jacking through CSS injection in comments esta entrada
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