Security readout for executives and security teams
Plain-English summary
CVE-2024-24520 is a high-severity code execution issue reported in Lepton CMS 7.0.0. The available record describes a local, low-privileged attacker gaining arbitrary code execution through upgrade.php in the language area. Treat affected installations as serious, especially where multiple users or hosting accounts share the same server.
Executive priority
Prioritize remediation for any internet-facing or shared-hosting Lepton CMS 7.0.0 system. Business risk is high because successful exploitation can compromise site data, content integrity, and service availability, but evidence points to local/low-privileged access rather than unauthenticated remote exposure.
Technical view
The CVE maps to CWE-94 and CVSS 3.1 score 7.8 with local attack vector, low complexity, low privileges, no user interaction, and high confidentiality, integrity, and availability impact. Public exploit references exist, but the supplied evidence does not identify a vendor patch, fixed version, or confirmed active exploitation.
Likely exposure
Likely limited to Lepton CMS 7.0.0 deployments, particularly where an attacker can obtain local or low-privileged server/application access. The source bundle does not provide reliable CPEs, broader affected versions, or hosting configuration details.
Exploitation context
The CVE is not listed as KEV in the supplied bundle. Packet Storm and Exploit-DB references indicate public exploit material exists, but that is not the same as confirmed active exploitation.
Researcher notes
The record is sparse and internally limited: affected vendor/product fields are n/a, and only Lepton CMS 7.0.0 is named in the description. Avoid assuming additional versions. Public exploit listings warrant defensive validation, but active exploitation is not established by the supplied sources.
Mitigation direction
- Inventory Lepton CMS deployments and identify any version 7.0.0 instances.
- Check the upstream Lepton CMS project for fixed versions or official workarounds.
- Restrict shell, hosting-panel, and file-write access to trusted administrators only.
- Isolate or retire affected instances if no vendor guidance is available.
- Increase monitoring around CMS maintenance files and unexpected code changes.
Validation and detection
- Confirm application version from deployed Lepton CMS files or admin metadata.
- Verify whether upgrade.php exists and is reachable within the CMS installation.
- Review server accounts with local or low-privileged access to the host.
- Check web and file-integrity logs for unexpected changes near CMS language paths.
- Track CVE and project references for updated remediation details.
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-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process 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-2024-24520 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
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/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.
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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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/xF9979/LEPTON-CMSCVE reference, mitre
- https://packetstormsecurity.com/files/176647/Lepton-CMS-7.0.0-Remote-Code-Execution.htmlCVE reference, mitre
- https://github.com/capture0x/leptoncmsCVE reference, mitre
- https://www.exploit-db.com/exploits/51949CVE 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 Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.