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CVE Record

CVE-2020-27481: An unauthenticated SQL Injection vulnerability in Good Layers LMS Plugin <= 2.1.4 exists due to the usage o...

An unauthenticated SQL Injection vulnerability in Good Layers LMS Plugin <= 2.1.4 exists due to the usage of "wp_ajax_nopriv" call in WordPress, which allows any unauthenticated user to get access to the function "gdlr_lms_cancel_booking" where POST Parameter "id" was sent straight into SQL query without sanitization.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This CVE describes an unauthenticated SQL injection in the Good Layers LMS WordPress plugin through version 2.1.4. A public site running the vulnerable plugin could let an unauthenticated visitor reach database-querying logic. Severity scoring and vendor remediation details are not included in the provided sources.

Executive priority

Treat this as urgent for any public WordPress site using the affected plugin, because unauthenticated SQL injection can threaten site data. Priority drops if the plugin is absent, newer than 2.1.4, or not internet-reachable.

Technical view

The reported flaw is in the WordPress unauthenticated AJAX path using wp_ajax_nopriv. The gdlr_lms_cancel_booking function received a POST id parameter and passed it directly into a SQL query without sanitization, creating SQL injection risk in Good Layers LMS Plugin <= 2.1.4.

Likely exposure

Exposure is limited to WordPress installations running Good Layers LMS Plugin version 2.1.4 or earlier, especially public sites where unauthenticated AJAX requests are reachable. The source bundle does not provide CPEs, install counts, or confirmed affected vendor metadata.

Exploitation context

The CVE is not listed as KEV in the provided bundle, and no cited source here confirms active exploitation. The public reference indicates vulnerability details exist, but this assessment does not rely on or provide exploit procedure.

Researcher notes

The record lacks CVSS, CWE, CPE, and detailed vendor remediation data. The strongest source evidence is the CVE description and linked public gist. Validate exposure locally before assigning scope, and avoid assuming exploitation without additional evidence.

Mitigation direction

  • Inventory WordPress sites for Good Layers LMS Plugin <= 2.1.4.
  • Check vendor guidance for a fixed version or official mitigation.
  • If no fix is available, disable or remove the plugin.
  • Review database and web logs for suspicious unauthenticated LMS booking requests.
  • Prioritize backups before making plugin or database changes.

Validation and detection

  • Confirm whether Good Layers LMS Plugin is installed and record its version.
  • Check whether public WordPress AJAX access is reachable on affected sites.
  • Review plugin code for unsanitized use of the POST id parameter.
  • Look for unexpected SQL errors or anomalous LMS booking cancellation activity.
  • Document findings against CVE-2020-27481 for remediation tracking.
Prepared
Confidence
medium
Sources
3

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-2020-27481 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
2Source 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.