Security readout for executives and security teams
Plain-English summary
This flaw affects older Contao CMS versions and can let a remote attacker make the application load and run local PHP files through a crafted URL parameter. That can become application compromise depending on what local files are reachable.
Executive priority
Treat as a high-priority legacy CMS remediation item, especially for internet-facing Contao sites. The vulnerability is old, so any remaining affected system likely reflects weak patch governance and should be corrected quickly.
Technical view
CVE-2017-10993 is a directory traversal/local file inclusion issue in Contao before 3.5.28 and 4.x before 4.4.1. The source bundle states remote attackers can include and execute arbitrary local PHP files via a crafted URL parameter.
Likely exposure
Exposure is most likely on public Contao websites running versions earlier than 3.5.28, or 4.x installations earlier than 4.4.1. The bundle does not identify affected CPEs or hosting configurations.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Public exploit status is not established from this bundle, but the described remote file inclusion impact is serious for exposed CMS deployments.
Researcher notes
The bundle provides limited technical detail: no CVSS, CWE, CPE, exploit evidence, or full affected matrix. Version and impact conclusions come from the CVE description and the Contao 3.5.28 reference.
Mitigation direction
- Upgrade Contao 3.x installations to 3.5.28 or later.
- Upgrade Contao 4.x installations to 4.4.1 or later.
- Check current Contao vendor guidance for supported upgrade paths.
- Restrict public access to vulnerable instances until upgraded.
- Review logs for suspicious URL parameter traversal patterns.
Validation and detection
- Inventory all Contao sites and record exact versions.
- Flag versions before 3.5.28 and 4.x before 4.4.1.
- Confirm the vendor security update has been applied.
- Review web server logs around July 2017 onward for suspicious requests.
- Verify no unexpected local PHP files were introduced or modified.
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.
File access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-10993 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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://contao.org/en/news/contao-3_5_28.htmlCVE reference · x_refsource_CONFIRM
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.