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CVE Record

CVE-2021-32244: Cross Site Scripting (XSS) in Moodle 3.10.3 allows remote attackers to execute arbitrary web script or HTML...

Cross Site Scripting (XSS) in Moodle 3.10.3 allows remote attackers to execute arbitrary web script or HTML via the "Description" field.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes a cross-site scripting issue in Moodle 3.10.3 where the Description field may allow script or HTML to run in a user's browser. The source bundle does not provide CVSS, patch, CWE, or confirmed vendor advisory details, so urgency depends on whether your Moodle instance exposes that field to untrusted users.

Executive priority

Treat this as a targeted web-application exposure check, not a confirmed emergency. If Moodle 3.10.3 is internet-facing or accepts content from students, customers, or partners, prioritize verification and vendor-guided remediation promptly.

Technical view

The reported flaw is XSS in Moodle 3.10.3 via the Description field, allowing remote attackers to execute arbitrary web script or HTML. The CVE data does not clarify stored versus reflected behavior, affected configurations, privileges required, or fixed versions. The only listed external reference is a GIF demonstration.

Likely exposure

Potentially exposed organizations run Moodle 3.10.3 and allow untrusted or low-trust users to submit or edit Description content. Exposure is unclear for other Moodle versions because the provided sources do not list affected version ranges or CPEs.

Exploitation context

The CVE is not listed as KEV in the provided bundle. A public GIF reference suggests demonstration material exists, but the sources do not support claims of active exploitation, weaponized exploit availability, or broad scanning activity.

Researcher notes

Evidence is thin: no CVSS, CWE, CPEs, affected range, patch reference, or advisory details are present in the bundle. The analysis should remain limited to Moodle 3.10.3 and the Description-field XSS claim until additional vendor or NVD data is available.

Mitigation direction

  • Identify any Moodle 3.10.3 instances in production or externally reachable environments.
  • Check Moodle vendor guidance for confirmed affected versions and fixed releases.
  • Restrict Description-field editing to trusted roles until vendor guidance is confirmed.
  • Review existing Description content for unexpected script or active HTML behavior.
  • Prioritize upgrading if vendor documentation confirms a patched release.

Validation and detection

  • Inventory Moodle versions and confirm whether 3.10.3 is present.
  • Map workflows where users can create or edit Description content.
  • Review role permissions for Description-field access by students, guests, or external users.
  • Verify Description output is safely encoded or sanitized in a controlled test environment.
  • Check logs and content history for suspicious Description-field modifications.
Prepared
Confidence
medium
Sources
3

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-2021-32244 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
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.