← Back
CVE-2011-1340
Cross-Site Scripting (XSS) in plone (CVE-2011-1340)
Summary
cross-site scripting in plone (CVE-2011-1340). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to `2.5.3` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2011-1340** has been found in plone.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade plone to **2.5.3** or later.
If unsure, ask your IT team or search "plone CVE-2011-1340" on the vendor's site.
CVE-2011-1340 (plone) — CWE-79 /
Patched: `2.5.3` — 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.
❓ What is the problem
**Cross-site scripting (XSS)** (CWE-79) exists in plone.
📍 Affected scope
plone — .
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.5.3**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'plone' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'plone' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `plone` を grep し、稼働しているサービス・バージョンを把握する。
-
6Apply patch patch
Upgrade plone to 2.5.3ステージング環境で 2.5.3 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
-
7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
PyPI
plone
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.3"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2011-1340
- advisory https://github.com/advisories/GHSA-cvwc-g7fw-7xrj
- package https://pypi.org/project/plone
- web https://web.archive.org/web/20110816092954/http://dev.plone.org/plone/changeset/12262
- web https://web.archive.org/web/20110817133423/https://dev.plone.org/plone/ticket/6110
- web http://jvn.jp/en/jp/JVN41222793/index.html
- web http://jvndb.jvn.jp/jvndb/JVNDB-2011-000056