Security readout for executives and security teams
Plain-English summary
CVE-2024-6920 is a stored cross-site scripting issue in NAC Telecommunication Systems NACPremium. An authenticated low-privilege user could save malicious content that runs when another user views it. The published severity is medium, but impact can include session exposure or unauthorized actions within the application context.
Executive priority
Treat as a moderate-priority application security update. Prioritize if NACPremium is externally reachable, widely used, or accessed by administrators. Confirm whether your environment runs an affected build and follow vendor guidance for remediation.
Technical view
The CVE describes CWE-79 improper output neutralization during web page generation in NACPremium through 01082024. CVSS 4.0 score is 4.8 with network access, low attack complexity, low privileges required, and active user interaction. Scope and impact are limited in the vector.
Likely exposure
Organizations using NACPremium builds through 01082024 may be exposed. The source bundle does not provide deployment details, internet exposure guidance, or a vendor patch identifier. Exposure depends on whether untrusted or lower-privileged users can store content viewed by administrators or other users.
Exploitation context
No CISA KEV listing is provided, and the sources do not state active exploitation. Exploitation requires an authenticated low-privilege actor and another user viewing affected stored content. The business risk is higher where NACPremium is used by privileged administrative users.
Researcher notes
Public details are sparse. The CVE record identifies stored XSS and the affected product range, but does not include specific vulnerable fields, proof-of-concept details, or a named fixed version in the supplied bundle. Avoid assuming exploitability beyond the CVSS conditions.
Mitigation direction
- Check NAC and government advisories for the corrected NACPremium version or vendor guidance.
- Upgrade NACPremium if the vendor identifies a fixed release.
- Restrict NACPremium access to trusted networks and necessary users only.
- Review role permissions for users who can create or edit stored content.
- Apply output encoding and input validation controls where administratively configurable.
Validation and detection
- Inventory NACPremium instances and record exact build or release dates.
- Compare installed versions against the affected range: through 01082024.
- Review vendor, USOM, and Siber Güvenlik advisories for update instructions.
- Check whether lower-privileged users can store content viewed by higher-privileged users.
- Review application logs for suspicious stored content changes.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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 lookupCVE-2024-6920 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
- Medium
- CVSS
- 4.8 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:N/R:U
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:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:N/R:U——TR-CERTVulnerability scoring details
Base CVSS 4.0 score
4.8MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/AU:N/R:U
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://www.usom.gov.tr/bildirim/tr-24-1376CVE reference, TR-CERT · government-resource, broken-link
- https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-24-1376CVE reference, TR-CERT · government-resource
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 Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.