Vulnerability in org.xwiki.platform:xwiki-platform-livedata-livetable (CVE-2026-53966)
Summary
Vulnerability in org.xwiki.platform:xwiki-platform-livedata-livetable (CVE-2026-53966). Risk of unauthorized operations or information disclosure. Exploitable via UserUpdatingDocumentEvent. Mitigation: upgrade to 18.1.0-rc-1 or later.
Original description
The description as published by the source.
Impact
Any user who can edit a page in XWiki can use Live Data's edit REST API in XWiki to change the rights on that page. This allows the user to obtain script right on the page. Script right allows the user to execute potentially dangerous Velocity scripts and send unfiltered HTML and JavaScript to the client. If there are other security checks, e.g., in extensions, implemented as listeners to UserUpdatingDocumentEvent and similar User… events, these checks can be circumvented, too.
Patches
This vulnerability has been patched by properly calling all checks in Live Data in XWiki 16.10.17, 17.4.10, 17.10.4 and 18.1.0.
Workarounds
We're not aware of any workarounds apart from upgrading.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-53966 has been found in org.xwiki.platform:xwiki-platform-livedata-livetable.
Attackers can target a specific entry point like UserUpdatingDocumentEvent over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade org.xwiki.platform:xwiki-platform-livedata-livetable to 18.1.0-rc-1 or later.
If unsure, ask your IT team or search "org.xwiki.platform:xwiki-platform-livedata-livetable CVE-2026-53966" on the vendor's site.
CVE-2026-53966 (org.xwiki.platform:xwiki-platform-livedata-livetable) — CWE-862
Attack surface: UserUpdatingDocumentEvent
Patched: 18.1.0-rc-1 — apply immediately
Workaround: We're not aware of any workarounds apart from upgrading.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-862) exists in org.xwiki.platform:xwiki-platform-livedata-livetable. Attackers reach the vulnerable code path via UserUpdatingDocumentEvent.
Check the vendor advisory for the affected versions of org.xwiki.platform:xwiki-platform-livedata-livetable. Attack surface: UserUpdatingDocumentEvent.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 18.1.0-rc-1.
Workaround: We're not aware of any workarounds apart from upgrading.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで org.xwiki.platform:xwiki-platform-livedata-livetable を使っているサービスとバージョンを洗い出す。
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2Apply temporary workaround mitigate
We're not aware of any workarounds apart from upgrading.パッチが適用されるまでの応急処置として、We're not aware of any workarounds apart from upgrading. を実施。回避策の副作用 (機能低下) を確認した上で。
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3Apply patch patch
Upgrade org.xwiki.platform:xwiki-platform-livedata-livetable to 18.1.0-rc-1ステージング環境で 18.1.0-rc-1 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
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4Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com
- web jira.xwiki.org
- web github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com
- web security-advisories@github.com