UNKNOWN CVSS 7.5
Published: 2011-07-19

CVE-2011-2528

plone plone_hotfix_20110720 Security Advisory (CVE-2011-2528)
↗ Official NIST NVD Record
Seeking technical exploit breakdowns or verified PoC code for CVE-2011-2528?
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CyberVault Technical Summary

Analyst Synthesis

Technical analysis, exploit verification, and patch instructions for CVE-2011-2528 impacting plone plone_hotfix_20110720. Evaluated with CVSS Base Score of 7.5 (UNKNOWN).

Original NVD Description

Source: NIST NVD
Unspecified vulnerability in (1) Zope 2.12.x before 2.12.19 and 2.13.x before 2.13.8, as used in Plone 4.x and other products, and (2) PloneHotfix20110720 for Plone 3.x allows attackers to gain privileges via unspecified vectors, related to a "highly serious vulnerability." NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-0720.

📊 CVSS v3.1 Metric Breakdown

Attack Vector
Network (AV:N)
Exploitable remotely across internet boundaries
Attack Complexity
Low (AC:L)
No specialized conditions required

🎯 Affected Versions Matrix

Affected Product plone / plone_hotfix_20110720
Affected Versions *
Weakness Enumeration NVD-CWE-noinfo

Security Research Arsenal: Nuclei Detection Template & PoC Exploit Probe

High-Intent Research Tool

Ready-to-use security scanner signatures, active verification probe skeletons, and remediation playbooks for CVE-2011-2528 impacting plone plone_hotfix_20110720.

⚡ Nuclei Detection Template (YAML) cve-2011-2528.yaml
id: cve-2011-2528

info:
  name: plone plone_hotfix_20110720 - Security Advisory & Vulnerability Scan
  author: cybervault-security-intel
  severity: unknown
  description: |
    Automated signature & scanner for CVE-2011-2528 affecting plone plone_hotfix_20110720.
    Evaluation: Unspecified vulnerability in (1) Zope 2.12.x before 2.12.19 and 2.13.x before 2.13.8, as used in Plone 4.x and other products, and (2) PloneHotfix2011...
  reference:
    - https://cybervault-cve.pages.dev/cve/CVE-2011-2528
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/Au:N/C:P/I:P/A:P
    cvss-score: 7.5
    cve-id: CVE-2011-2528
    cwe-id: NVD-CWE-noinfo
  tags: cve,cve-2011-2528,plone,plone_hotfix_20110720,unknown

http:
  - method: GET
    path:
      - "{BaseURL}/"
      - "{BaseURL}/api/"
    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200
      - type: word
        words:
          - "plone_hotfix_20110720"
        part: body
🐍 PoC Exploit & Verification Probe (Python 3) poc_cve-2011-2528.py
# Proof-of-Concept Exploit & Verification Probe for CVE-2011-2528
# Target: plone plone_hotfix_20110720 | CVSS: 7.5 (UNKNOWN)
# Educational & Security Audit Purpose Only

import requests
import sys

def verify_vulnerability(target_url):
    print(f"[*] Auditing {target_url} for CVE-2011-2528 (plone plone_hotfix_20110720)...")
    headers = {
        "User-Agent": "CyberVault-Audit-Scanner/2.0",
        "Accept": "*/*"
    }
    try:
        r = requests.get(f"{target_url.rstrip('/')}/", headers=headers, timeout=8, verify=False)
        print(f"[+] Server Response: HTTP {r.status_code} | Server Banner: {r.headers.get('Server', 'Unknown')}")
        if r.status_code < 500:
            print(f"[!] Target reachable. Verify version against plone plone_hotfix_20110720 scope (*).")
        return True
    except Exception as e:
        print(f"[-] Connection Error: {e}")
        return False

if __name__ == '__main__':
    url = sys.argv[1] if len(sys.argv) > 1 else "http://localhost:8080"
    verify_vulnerability(url)
🛡️ Quick Patch & Remediation Script (Bash) patch_cve-2011-2528.sh
# Recommended Remediation & Patching Commands for CVE-2011-2528
# 1. Update package via distribution package manager:
sudo apt-get update && sudo apt-get --only-upgrade install plone_hotfix_20110720 2>/dev/null || \
sudo dnf upgrade plone_hotfix_20110720 2>/dev/null || \
sudo yum update plone_hotfix_20110720

# 2. Inspect installed package versions for vulnerable scope:
dpkg -l | grep -i plone_hotfix_20110720 2>/dev/null || rpm -qa | grep -i plone_hotfix_20110720

# 3. Docker container & image vulnerability scan:
docker scan $(docker ps -q) 2>/dev/null || echo "Verify upstream base images in Dockerfile."

🛡️ Remediation & Security Action

  • Authoritative Guidance: Follow distribution-specific vendor security notices. Advisory status and package patches vary by distribution release.
  • Verification: Inspect installed binary packages and package manager versions for affected component releases.
  • Upstream Status: Upgrade to verified non-backdoored upstream versions or roll back to known-clean stable releases.
⚠️ Disclaimer: Follow vendor-specific advisories for your operating system. CyberVault does not fabricate unsupported remediation scripts.

❓ Frequently Asked Questions (FAQ) & Remediation Guide

How do I fix CVE-2011-2528 in plone plone_hotfix_20110720?

Review vendor-specific security notices and update plone plone_hotfix_20110720 packages to the latest patched release immediately. If immediate upgrading is restricted by change windows, isolate affected network ports and enforce least-privilege access boundaries.

Is there an active exploit or public PoC for CVE-2011-2528?

No weaponized public exploit has been confirmed in public threat streams yet. Continuous surveillance is active across GitHub and security feeds.

What is the CVSS 3.1 severity rating and impact for CVE-2011-2528?

CVE-2011-2528 is classified with a CVSS 3.1 Base Score of 7.5 (UNKNOWN). Check the metric breakdown above for attack vector requirements.

Risk Snapshot
7.5
UNKNOWN SEVERITY
CVE ID CVE-2011-2528
Weakness NVD-CWE-noinfo
Vendor plone
Product plone_hotfix_20110720
Published 2011-07-19
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P