Security readout for executives and security teams
Plain-English summary
CVE-2020-25703 is a Moodle privacy flaw where participant table downloads included user email addresses even when those emails were meant to be hidden. The main risk is unauthorized disclosure of personal data, not system takeover.
Executive priority
Treat this as a privacy remediation item. It is not described as remote code execution, but it may expose personal email addresses and create notification or compliance work if affected exports occurred.
Technical view
Moodle versions 3.9 through 3.9.2, 3.8 through 3.8.5, and 3.7 through 3.7.8 exposed hidden user emails in participant table downloads. The issue maps to CWE-201, insertion of sensitive information into sent data, and is fixed in 3.9.3, 3.8.6, 3.7.9, and 3.10.
Likely exposure
Exposure is likely on Moodle sites in the affected version ranges where participant table downloads were used and users relied on hidden email settings. The provided sources do not specify exact role, permission, or configuration prerequisites.
Exploitation context
The source bundle does not cite active exploitation, public exploit tooling, or CISA KEV listing. Practical abuse would depend on access to participant downloads and whether hidden emails were present.
Researcher notes
Evidence is strong for affected and fixed Moodle versions, but incomplete for CVSS, exploitability prerequisites, and exploitation in the wild. Avoid assuming unauthenticated access or broader data exposure beyond hidden user emails.
Mitigation direction
- Upgrade Moodle to 3.9.3, 3.8.6, 3.7.9, 3.10, or later supported releases.
- Apply relevant Fedora package updates where Moodle is managed through Fedora packages.
- Review Moodle vendor guidance for any deployment-specific privacy or configuration notes.
- Assess whether hidden emails may have been exported before remediation.
Validation and detection
- Inventory Moodle versions across production, staging, and packaged deployments.
- Confirm installed versions are not 3.9.0-3.9.2, 3.8.0-3.8.5, or 3.7.0-3.7.8.
- In an authorized test, verify participant downloads do not include hidden email addresses.
- Review logs or records for participant table exports before the upgrade.
Public sources used
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-201: Information exposure and cloud metadata lookup
Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. 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-2020-25703 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.redhat.com/show_bug.cgi?id=1895439CVE reference · x_refsource_MISC
- https://moodle.org/mod/forum/discuss.php?d=413941CVE reference · x_refsource_MISC
- FEDORA-2020-304aa2c365CVE reference · vendor-advisory, x_refsource_FEDORA
- FEDORA-2020-db73e37548CVE reference · vendor-advisory, x_refsource_FEDORA
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.
Insertion of Sensitive Information Into Sent Data
Insertion of Sensitive Information Into Sent Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.