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CVE Record

CVE-2018-20678: LibreNMS through 1.47 allows SQL injection via the html/ajax_table.php sort[hostname] parameter, exploitabl...

LibreNMS through 1.47 allows SQL injection via the html/ajax_table.php sort[hostname] parameter, exploitable by authenticated users during a search.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-20678 is an authenticated SQL injection issue in LibreNMS through version 1.47. A logged-in user could abuse a search-related table sorting parameter to interfere with database queries. For executives, the main concern is insider or compromised-account risk against a monitoring platform that may contain sensitive infrastructure data.

Executive priority

Prioritize this for monitoring environments with many users, weak account controls, or internet exposure. The issue requires authentication, which lowers urgency versus unauthenticated SQL injection, but monitoring systems often hold high-value infrastructure context.

Technical view

The CVE describes SQL injection in LibreNMS html/ajax_table.php through the sort[hostname] parameter, reachable by authenticated users during search. The source bundle does not provide CVSS, CWE, exploit details, or a confirmed fixed release number. GitHub commit history for ajax_table.php is cited, but no specific patch commit is identified in the bundle.

Likely exposure

Exposure is limited to organizations running LibreNMS through 1.47 where untrusted, broad, or compromised authenticated accounts can access the affected search/table functionality.

Exploitation context

The bundle states the issue is exploitable by authenticated users. It does not cite public weaponization, mass exploitation, or CISA KEV listing; KEV is false. Treat this as credible authenticated application risk, not confirmed active exploitation.

Researcher notes

Evidence is sparse: no CVSS vector, CWE, fixed version, or exact patch commit is provided. The strongest claims are authenticated SQL injection, affected LibreNMS through 1.47, and the sort[hostname] parameter in html/ajax_table.php during search.

Mitigation direction

  • Identify any LibreNMS deployments at version 1.47 or earlier.
  • Check LibreNMS and advisory guidance for the fixed release or patch commit.
  • Upgrade affected LibreNMS instances according to vendor guidance.
  • Restrict LibreNMS access to trusted users and management networks.
  • Review account privileges and remove unnecessary authenticated users.
  • Monitor application and database logs for unusual authenticated search activity.

Validation and detection

  • Confirm the deployed LibreNMS version on each monitoring instance.
  • Verify whether html/ajax_table.php has vendor-fixed query handling.
  • Review authentication logs for unexpected or stale LibreNMS accounts.
  • Check web and database logs for suspicious search or sorting errors.
  • Confirm compensating controls limit access to the LibreNMS interface.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2018-20678 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.