Security readout for executives and security teams
Plain-English summary
CVE-2023-54335 affects eXtplorer file manager versions described by the advisory as up to 2.1.14. An unauthenticated attacker may bypass login, upload PHP content, and run commands on the server. This is business-critical if eXtplorer is reachable from the internet or manages sensitive web files.
Executive priority
Treat as urgent for any reachable eXtplorer deployment. The potential outcome is full server compromise, not just account access. Prioritize inventory, exposure reduction, and vendor-guided remediation.
Technical view
The issue is an authentication bypass mapped to CWE-306 with CVSS 9.8. Sources state attackers can manipulate the login request, gain access without a password, upload malicious PHP files, and achieve remote code execution. Public exploit material is referenced, but the source bundle does not show CISA KEV listing or confirmed active exploitation.
Likely exposure
Highest risk is externally reachable eXtplorer deployments, especially those with write access to web-served directories. Internal deployments are still risky if reachable by untrusted users or compromised hosts.
Exploitation context
A public Exploit-DB reference exists, increasing practical risk. The bundle marks KEV as false and provides no cited evidence of active exploitation in the wild.
Researcher notes
The source bundle’s affected-version field appears incomplete, while the advisory title states eXtplorer <= 2.1.14. No specific vendor patch is named in the provided sources. Avoid assuming exploit activity beyond the public exploit reference.
Mitigation direction
- Identify all eXtplorer instances and whether they are internet-accessible.
- Check vendor and advisory sources for fixed versions or official mitigation guidance.
- Restrict eXtplorer access to trusted networks or authenticated VPN users.
- Disable or remove eXtplorer where it is not business-critical.
- Review web directories for unexpected PHP or recently uploaded files.
- Back up relevant systems before making remediation changes.
Validation and detection
- Confirm installed eXtplorer versions, prioritizing versions up to 2.1.14.
- Review application and web server logs for unusual login or upload activity.
- Inspect writable directories for unfamiliar PHP files or modified web content.
- Verify eXtplorer is not publicly reachable unless explicitly required.
- Document whether compensating access controls are enforced and monitored.
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.
CWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-54335 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
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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 vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-51067CVE reference · exploit
- Official eXtplorer Product HomepageCVE reference · product
- VulnCheck Advisory: eXtplorer<= 2.1.14 - Authentication Bypass & Remote Code Execution (RCE)CVE reference · third-party-advisory
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.
Missing Authentication for Critical Function
Missing Authentication for Critical Function represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.