Security readout for executives and security teams
Plain-English summary
CVE-2018-9173 is a cross-site scripting issue in an old GetSimple CMS 3.3.13 Flash upload component. If exposed, an attacker could cause script or HTML to run in a victim browser. The source bundle does not provide CVSS, a fixed version, or evidence of active exploitation.
Executive priority
Prioritize remediation for internet-facing or administrator-used legacy GetSimple CMS sites. This is not marked KEV in the bundle, but public exploit information raises practical risk for exposed systems.
Technical view
The reported flaw is in admin/template/js/uploadify/uploadify.swf in GetSimple CMS 3.3.13. The CVE description says remote attackers can inject arbitrary web script or HTML, demonstrated through the movieName parameter. Public exploit material is referenced, but the bundle does not show KEV listing or active exploitation.
Likely exposure
Exposure is most likely on legacy GetSimple CMS 3.3.13 installations that still include the Uploadify SWF under the admin template path, especially if the file is reachable from the internet.
Exploitation context
The bundle includes an Exploit-DB reference, so public exploit information exists. However, KEV is false and no cited source in the bundle states active exploitation in the wild.
Researcher notes
Evidence is limited to the CVE description, GitHub issue reference, and Exploit-DB listing. The source bundle gives no CVSS score, CWE, patch version, or confirmed exploitation status, so validation should focus on asset presence and exposure.
Mitigation direction
- Inventory GetSimple CMS installations and identify any running version 3.3.13.
- Check whether admin/template/js/uploadify/uploadify.swf is present and externally reachable.
- Review GetSimple CMS project guidance before applying version or component changes.
- Restrict public access to legacy admin assets where operationally safe.
- Retire or isolate unsupported legacy CMS deployments.
Validation and detection
- Confirm the CMS version and presence of the vulnerable SWF file.
- Review web logs for requests to uploadify.swf and movieName parameter activity.
- Verify administrative asset paths are not unnecessarily internet-exposed.
- Document whether vendor or project guidance identifies a fixed release.
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
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CVE-2018-9173 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/GetSimpleCMS/GetSimpleCMS/issues/1266CVE reference · x_refsource_CONFIRM
- 44408CVE 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.