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CVE Record

CVE-2021-44266: GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.

GUnet Open eClass (aka openeclass) before 3.12.2 allows XSS via the modules/auth/formuser.php auth parameter.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2021-44266 is a cross-site scripting issue in GUnet Open eClass before 3.12.2. The vulnerable area is the authentication form handling an auth parameter. Business impact depends on exposure of Open eClass login/auth pages and whether users can be lured into interacting with malicious content.

Executive priority

Prioritize as routine but time-bound remediation unless Open eClass is internet-facing or used by privileged users. Without CVSS or exploitation evidence, urgency is driven mainly by exposure and user-trust risk around authentication pages.

Technical view

The CVE describes XSS through modules/auth/formuser.php via the auth parameter in openeclass versions before 3.12.2. The bundle provides no CVSS, CWE, or detailed exploit prerequisites. A vendor changeset and Open eClass 3.12.2 documentation are cited as the relevant fix context.

Likely exposure

Exposure is limited to organizations running GUnet Open eClass versions earlier than 3.12.2, especially internet-facing deployments. The supplied affected-product metadata is incomplete, so confirm product identity and version locally before prioritizing broadly.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Public references identify the vulnerable parameter and affected file, but the bundle does not provide reliable prevalence, weaponization status, or exploit maturity details.

Researcher notes

Evidence is thin but consistent: the CVE description, version boundary, affected PHP file, and auth parameter are specified. The affected CPE data is not useful, and the bundle does not include root-cause detail, exploit requirements, or independent confirmation of active abuse.

Mitigation direction

  • Identify any GUnet Open eClass deployments and record their versions.
  • Upgrade Open eClass installations older than 3.12.2 to 3.12.2 or later.
  • Review vendor documentation and the referenced changeset for fix details.
  • Restrict external access to Open eClass where business requirements allow.
  • Monitor auth-page requests and browser-side security alerts for suspicious activity.

Validation and detection

  • Confirm whether modules/auth/formuser.php exists in deployed Open eClass instances.
  • Verify deployed Open eClass versions are 3.12.2 or later.
  • Review application logs for unusual requests involving the auth parameter.
  • Perform safe XSS regression testing in a non-production environment.
  • Check that relevant authentication pages encode untrusted parameter output.
Prepared
Confidence
medium
Sources
5

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

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ATT&CK lookup starting points

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CVE-2021-44266 mapping review

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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
4Source 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.