Cross-Site Scripting (XSS) in org.xwiki.platform:xwiki-platform-oldcore (CVE-2021-29459)
Summary
Cross-site scripting in org.xwiki.platform:xwiki-platform-oldcore (CVE-2021-29459). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 12.8 or later.
Original description
The description as published by the source.
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. It is possible to persistently inject scripts in XWiki versions prior to 12.6.3 and 12.8. Unregistred users can fill simple text fields. Registered users can fill in their personal information and (if they have edit rights) fill the values of static lists using App Within Minutes. There is no easy workaround except upgrading XWiki. The vulnerability has been patched on XWiki 12.8 and 12.6.3.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
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-2021-29459 has been found in org.xwiki.platform:xwiki-platform-oldcore.
Risk of unauthorized operations or information disclosure.
What to do: upgrade org.xwiki.platform:xwiki-platform-oldcore to 12.8 or later.
If unsure, ask your IT team or search "org.xwiki.platform:xwiki-platform-oldcore CVE-2021-29459" on the vendor's site.
CVE-2021-29459 (org.xwiki.platform:xwiki-platform-oldcore) — CWE-79
Attack vector: remote (network-reachable) / unauthenticated
Patched: 12.8 — apply immediately
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.
Cross-site scripting (XSS) (CWE-79) exists in org.xwiki.platform:xwiki-platform-oldcore.
Check the vendor advisory for the affected versions of org.xwiki.platform:xwiki-platform-oldcore.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 12.8.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
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-oldcore 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 patch patch
Upgrade org.xwiki.platform:xwiki-platform-oldcore to 12.8ステージング環境で 12.8 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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3Post-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
- advisory nvd.nist.gov
- report github.com