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Security report for kultur123ruesselsheim.de

Kultur123 Stadt Rüsselsheim · Government · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

68/100

Risk levelMedium

0–100, higher is better. How it is calculated

Kultur123 Stadt Rüsselsheim is a municipal cultural and educational service provider offering a range of services including cultural events, theater programs, adult education (Volkshochschule), music school, and city library services. The website serves the local community of Rüsselsheim, Germany, providing information and access to these services. The business model is public sector focused, supporting cultural enrichment and education within the city. Technically, the website is built on the Cabacos CMS platform with classic JavaScript libraries such as Prototype.js and Scriptaculous. It employs Cookiebot for GDPR-compliant cookie consent management, ensuring privacy compliance. The site is moderately optimized for performance and accessibility, with basic mobile responsiveness and good SEO practices. From a security perspective, the site uses HTTPS and implements cookie consent mechanisms but lacks visible security headers and explicit published security policies. No vulnerabilities or exposed sensitive data were detected. The WHOIS data aligns with the website's municipal nature, showing consistent domain registration without privacy protection, indicating transparency. Overall, the website is professional, trustworthy, and compliant with privacy regulations, serving its target audience effectively. Strategic improvements in security headers and accessibility could enhance its security posture and user experience.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

4 findings rated critical or high. Fix these first.

  1. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…
  2. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

Need hands-on remediation? Email guard@offseq.com

Keep watching kultur123ruesselsheim.de

This scan found 25 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
72
Security headers
15
Email security
65
DNS health
70
Network security
100
GDPR outside view
83
Average
68

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention kultur123ruesselsheim.de, from OffSeq Breach.

Total records
8
Employees
0
Customers
8
Third parties
0
Weak passwords
100%

2 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for kultur123ruesselsheim.de.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

Kultur123 Stadt Rüsselsheim occupies a stable position as a local government cultural and educational service provider. Its competitive advantage lies in its official backing by the city and comprehensive service offerings across culture, theater, adult education, music, and library sectors. The business model is non-commercial, focusing on public service and community engagement. Revenue streams are likely municipal funding and public grants. The target customers are residents and visitors interested in cultural and educational activities. Growth indicators include active event programming and digital presence on social media platforms. Partnerships with local educational and cultural institutions are evident through linked domains. The website reflects a consistent branding strategy aligned with municipal identity.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and GDPR-compliant cookie consent via Cookiebot. However, it lacks explicit security headers such as Content Security Policy, HSTS, and X-Frame-Options, which are recommended to mitigate common web threats. No incident response or security policy documents are publicly available, which could be a compliance gap. The use of older JavaScript libraries like Prototype.js and Scriptaculous may pose potential risks if not regularly updated. No vulnerabilities or exposed sensitive data were observed in the HTML content. Overall, the security posture is adequate for a public informational site but could benefit from enhanced security controls and transparency.

Recommendations

  1. Implement standard security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to strengthen web security.
  2. Publish a clear security policy and incident response contact information to improve transparency and compliance.
  3. Regularly update CMS and JavaScript libraries to mitigate risks from outdated components.
  4. Enhance website accessibility to meet modern standards and improve user experience for all visitors.
  5. Maintain and monitor cookie consent mechanisms to ensure ongoing GDPR compliance and user trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kultur123 Stadt Rüsselsheim
Description
Angebote für Bildung und Kultur bietet Kultur123 Stadt Rüsselsheim mit den Betriebsteilen Kultur & Theater, vhs, Musikschule und Stadtbücherei.
Key services
Cultural events, Theater programs, Adult education (Volkshochschule), Music school, City library services
Content quality
good
Branding
consistent

Technology

Stack
Cabacos CMS 6.4.3006, JavaScript libraries: Prototype.js, Scriptaculous, Cookiebot consent management, Lightbox JS, HTML5, CSS3
Frameworks
YAML CSS framework (mentioned in comments)
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google
Tracking pixels
Cookiebot
Marketing tools
Cookiebot
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is a municipal cultural and educational portal for Rüsselsheim city.
  2. Uses Cookiebot for GDPR-compliant cookie consent management.
  3. No terms of service page found.
  4. Contact information is clearly provided with official email and phone numbers.
  5. No explicit security or incident response policies published.
  6. No security headers detected in provided data; HTTPS is enabled.
  7. No suspicious or malicious content detected.
  8. Social media presence on LinkedIn, YouTube, Instagram.
  9. Uses Cabacos CMS and classic JS libraries (Prototype, Scriptaculous).
  10. Cookie categories include necessary, preferences (none used), statistics (none used), marketing (Google, YouTube).
Technical notes

Notes

The website is powered by Cabacos CMS version 6.4.3006, utilizing JavaScript libraries Prototype.js and Scriptaculous for frontend interactions. Cookiebot is integrated for cookie consent management, reflecting a commitment to privacy compliance. The site uses standard HTML5 and CSS3 with a YAML CSS framework for layout. Performance is moderate, with room for optimization especially in mobile responsiveness and accessibility. The hosting provider is not explicitly identified. The technical stack is somewhat dated but functional, with opportunities for modernization to improve performance and security. No critical technical risks were identified from the HTML content.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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