Security readout for executives and security teams
Plain-English summary
CVE-2018-8811 describes a CSRF issue in OpenCMS 10.5.3 that could let an attacker abuse an authenticated administrator's browser to perform privilege escalation. The public record notes disputed context: exploitation reportedly requires a CMS account with content-manager capability. No active exploitation is identified in the provided sources.
Executive priority
Treat this as a targeted administrative-risk issue rather than an internet-scale emergency. Prioritize if OpenCMS 10.5.3 supports business-critical sites or has many content users. Absence of CVSS and KEV lowers certainty, not the need to verify exposure.
Technical view
The named component is system/workplace/admin/accounts/user_role.jsp in OpenCMS 10.5.3. The issue concerns administrative role-change requests lacking sufficient CSRF protection. The CVE record includes no CVSS score, no CWE, and no populated affected-product matrix, so exposure assessment depends on local OpenCMS version and configuration evidence.
Likely exposure
Organizations are most exposed if they run OpenCMS 10.5.3 with reachable administrative workplace functions and users who can upload or present content to administrators. The source bundle does not prove broader version exposure.
Exploitation context
A public Exploit-DB reference exists, but the bundle does not show KEV listing or confirmed in-the-wild exploitation. The CVE text says exploitation requires hijacking an authenticated administrative user's request and notes an argument that a CMS content-manager account is needed.
Researcher notes
The record is unusually thin and partially contested. Do not assume all OpenCMS versions are affected. Distinguish public proof-of-concept availability from active exploitation. Focus validation on version, role-change CSRF controls, administrator browsing paths, and the content-manager prerequisite stated in the CVE text.
Mitigation direction
- Check Alkacon/OpenCMS guidance for fixed versions or supported mitigations.
- Inventory OpenCMS instances and confirm whether 10.5.3 is present.
- Limit access to administrative workplace paths to trusted networks or users.
- Review and minimize content-manager and administrator privileges.
- Train administrators not to open untrusted CMS content while authenticated.
Validation and detection
- Confirm OpenCMS version and whether 10.5.3 is deployed.
- Identify whether administrative workplace user-role functionality is reachable.
- Review administrator and content-manager account assignments.
- Check vendor issue history for a documented fix or configuration guidance.
- Look for unexpected role changes in CMS audit or access logs.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-8811 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/alkacon/opencms-core/issues/586CVE reference · x_refsource_MISC
- 44391CVE reference · exploit, x_refsource_EXPLOIT-DB
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.