Many XWiki instances continue to work well from a user perspective while slowly accumulating security and governance risks. Users can still log in, search, edit pages and access documents, but that does not always mean the instance is properly secured or easy to maintain.

An XWiki security review is a practical audit of the platform configuration, access model, authentication setup, installed extensions, custom code, infrastructure and recovery procedures.

Security risks are often hidden in less visible areas: outdated versions, inherited permissions, forgotten administrator accounts, overly powerful rights, old extensions, undocumented scripts, weak fallback access or backup assumptions that were never tested.

The value of the review is not only to find technical issues. It is to understand how the instance is actually used, where risk has accumulated over time, and what should be cleaned up before the next upgrade, migration, authentication change or business-critical rollout.

Why an XWiki security review matters

XWiki is often used as an internal knowledge base, intranet, documentation platform or controlled document system. In these cases, the platform may contain sensitive procedures, internal decisions, customer information, technical documentation, compliance records or business-critical workflows.

The more important the content becomes, the more important it is to understand who can access it, who can change it, which customizations influence it and how safely the instance can be upgraded or restored.

In real XWiki instances, security problems are rarely caused by a single visible mistake. They often come from years of small configuration decisions: one temporary group, one local right exception, one old extension, one undocumented script, one backup procedure that nobody has tested recently.

Quick self-check: does your XWiki need a security review?

Your XWiki instance may need a security review if one or more of these situations sound familiar.

• You are not sure who currently has admin, script or programming rights.
• The instance has not been upgraded regularly or the upgrade path is unclear.
• SSO, LDAP, OIDC or SAML was configured years ago and not reviewed recently.
• Custom scripts, templates, macros or extensions exist but are not clearly documented.
• Groups and page-level rights have grown organically over several years.
• Backups exist, but the restore process has not been tested or documented.
• A new team inherited the instance and has to guess how rights, extensions or customizations were configured.

What should be reviewed

1. Version and upgrade status

The current XWiki version should be reviewed together with the target upgrade path, installed extensions and infrastructure dependencies. An outdated instance is not only a maintenance concern. It can also mean that security fixes, compatibility improvements and platform hardening are missing.

The review should also check whether upgrades are performed regularly or only when something breaks. A repeatable upgrade process is part of the security posture of a long-running XWiki instance.

For more details on upgrade planning, see why regular XWiki upgrades matter.

2. Access rights and permission model

XWiki has a powerful access-rights system, but this flexibility needs a clear governance model. A review should check who has administration rights, who has script or programming rights, whether rights are assigned through groups, and whether page-level exceptions are still understandable.

It is also important to review inherited rights, public areas, restricted spaces, old groups, inactive users and sensitive pages. Many permission problems do not come from one obvious mistake, but from years of small exceptions that nobody reviewed later.

For a deeper look at this topic, see why XWiki access rights need a clear governance model. For a practical starting point, see how to start an XWiki access-rights review.

3. Authentication and identity management

Authentication should be reviewed beyond the simple question of whether users can log in. LDAP, Active Directory, OIDC, SAML, SSO and MFA setups all need to be checked together with group synchronization, fallback login options, local administrator accounts and recovery procedures.

SSO is useful, but it does not automatically guarantee a clean access model. Authentication confirms who the user is. Authorization still depends on how XWiki groups and rights are configured.

4. Extensions and custom code

Installed extensions, custom applications, Velocity scripts, Groovy scripts, macros, sheets, templates, UI extensions and Java components are all part of the security and maintenance surface of the instance.

A review should identify what is installed, what is customized, what is still used, what is documented and what needs special validation during upgrades. Custom code should be tracked, explained and tested, not discovered accidentally during an incident or a production upgrade.

Customizations should also be reviewed from a maintenance perspective. See how to keep XWiki custom development maintainable across upgrades.

5. Configuration, infrastructure and operations

The review should also cover the environment around XWiki: HTTPS and reverse proxy configuration, database access, filesystem and attachment storage, mail configuration, PDF export services, logs, monitoring, server access and separation between production and staging.

Backups should be reviewed together with restore expectations. A backup strategy is incomplete if nobody knows what is included, how long recovery would take or whether the restore process has ever been tested.

Common findings in real XWiki security reviews

In real XWiki instances, security risks are often not caused by one major mistake. They usually come from configuration decisions that were reasonable at the time but were never reviewed together later.

• Old administrator accounts that are still active.
• Script or programming rights granted to users who no longer maintain the platform.
• Groups created for old projects that still grant access.
• Page-level rights added as exceptions and never documented.
• Custom Velocity or Groovy code that is business-critical but undocumented.
• Extensions installed years ago without a clear owner or upgrade validation process.
• SSO configured correctly for login, but not reviewed together with XWiki groups.
• Backup jobs scheduled automatically, but restore expectations never tested.
• Production changes performed without a staging or rollback habit.

What this review is not

A security review is not a one-click scan and it is not limited to checking the installed XWiki version. Automated checks can help, but they cannot fully explain why a group has access, whether a custom script is still needed, or whether a restore procedure would actually work during an incident.

The review should combine technical checks with context: how the wiki is used, which areas are sensitive, which users administer it, what customizations matter and what the organization expects during an incident or upgrade.

XWiki security review checklist

A practical XWiki security review should cover both application-level and operational risks. The following checklist can be used as a starting point when reviewing a production instance.

• Check the current XWiki version, target version and upgrade path.
• Review installed extensions, outdated components and unsupported customizations.
• Audit administrator, script and programming rights.
• Review groups, inherited permissions and page-level exceptions.
• Validate authentication, SSO, MFA, fallback access and administrator recovery options.
• Identify custom scripts, templates, macros, UI extensions and Java components.
• Review public, internal and restricted areas.
• Check infrastructure, HTTPS, reverse proxy, database, filesystem and mail configuration.
• Confirm backup coverage, restore expectations and rollback procedures.
• Document findings and prioritize remediation actions.

What the review should produce

A useful security review should not only produce a list of detected problems. It should produce a practical action plan. Each finding should explain the risk, the affected area, the recommended action and the priority.

Some findings may require immediate action, such as exposed administration rights or unsafe fallback access. Others may become planned improvements, such as cleaning old groups, documenting custom code, reviewing extensions or preparing the next upgrade.

Example review finding

The best outcome is a clearer, safer and more maintainable XWiki instance: one where administrators understand the access model, critical features are documented and future upgrades can be planned with fewer surprises.

XWiki security review readiness checklist

Before starting a security review, prepare the following information. This makes the review faster and helps identify risks more clearly.

• Current XWiki version and target upgrade version, if an upgrade is planned.
• List of installed extensions and known custom applications.
• Authentication method: local users, LDAP, OIDC, SAML, SSO or MFA.
• Known restricted spaces, confidential areas or public-facing pages.
• List of technical administrators and users with powerful rights.
• Known custom scripts, templates, macros, UI extensions or Java components.
• Backup location, frequency and last restore test, if known.
• Staging or test environment availability.

When should an XWiki security review be done?

A review is especially useful before a major upgrade, after years of organic growth, after an authentication change, before exposing the instance more broadly, after a migration, or when the wiki becomes more business-critical than it was when first installed.

It is also useful when administration responsibilities change. A new team should not have to guess how permissions, extensions, customizations and recovery procedures were configured years earlier.

XWiki security review FAQ