Security readout for executives and security teams
Plain-English summary
CVE-2026-30461 is a high-severity authenticated remote code execution issue reported in Daylight Studio FUEL CMS v1.5.2. A low-privileged authenticated attacker may be able to run operating-system commands through installer Git submodule handling, creating direct risk to site confidentiality, integrity, and availability.
Executive priority
Treat as a high-priority remediation item for any internet-facing or multi-user FUEL CMS deployment. Authenticated RCE can become a full site compromise after credential theft or misuse, even without evidence of active exploitation in the provided sources.
Technical view
The CVE describes CWE-77 command injection in FUEL CMS v1.5.2, involving /fuel/modules/fuel/controllers/Installer.php and add_git_submodule. CVSS 3.1 is 8.3 with network access, low complexity, low privileges required, no user interaction, and high confidentiality and integrity impact.
Likely exposure
Exposure is most likely where FUEL CMS v1.5.2 is deployed and installer functionality is present or reachable by authenticated users. The CVE record’s structured affected-product fields are incomplete, so validate against actual deployed software and paths.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. Public references include the affected source file and a Pentest-Tools advisory PDF. The flaw requires authentication, reducing broad unauthenticated exposure but still leaving insider, stolen-account, and low-privilege account risk.
Researcher notes
Evidence is strongest for the vulnerability description, affected file, function name, CWE-77 classification, and CVSS vector. The provided affected-product metadata is incomplete, and no official patch information is included in the bundle.
Mitigation direction
- Check vendor repository and advisory sources for fixed versions or official guidance.
- Restrict FUEL CMS administrative and installer access to trusted users and networks.
- Disable or remove installer functionality if not operationally required, following vendor guidance.
- Review authenticated user accounts and revoke unnecessary CMS access.
- Monitor for suspicious installer activity and unexpected Git submodule operations.
Validation and detection
- Inventory FUEL CMS instances and confirm whether v1.5.2 is running.
- Check whether Installer.php exists and is reachable after authentication.
- Review CMS roles to identify users with installer or administrative access.
- Inspect application and web logs for unusual installer requests.
- Track the CVE record and vendor repository for remediation updates.
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-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupCVE-2026-30461 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
- High
- CVSS
- 8.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
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.
SSVC decision data
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:L/UI:N/S:U/C:H/I:H/A:L2.85.5CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
8.3HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/daylightstudio/FUEL-CMS/blob/master/fuel/modules/fuel/controllers/Installer.phpCVE reference, mitre
- https://pentest-tools.com/PTT-2025-028-Authenticated-RCE-via-Git-Submodules.pdfCVE reference, mitre
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.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.