Security readout for executives and security teams
Plain-English summary
Moodle 3.9 through 3.9.2 allowed JavaScript to be included when renaming content bank items. This is a cross-site scripting issue that could affect users viewing maliciously named content bank items. The published source bundle names fixed versions but does not provide CVSS scoring.
Executive priority
Treat this as a targeted web application risk, not a confirmed emergency. Prioritize upgrading exposed Moodle 3.9.x systems because the fix is named and XSS can affect user trust, sessions, and content integrity.
Technical view
CVE-2020-25702 is a CWE-79 issue in Moodle content bank item renaming. The vulnerability allowed JavaScript in renamed content bank items. Affected versions are Moodle 3.9 to 3.9.2, with fixes listed in Moodle 3.9.3 and 3.10.
Likely exposure
Exposure is most likely on Moodle sites running versions 3.9 through 3.9.2, especially where users can rename content bank items. The bundle does not identify other products or affected branches.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not marked in KEV. Practical abuse likely depends on access to rename content bank items and on another user viewing the affected content.
Researcher notes
Evidence is limited to the CVE description and vendor-linked references. No CVSS vector, exploit details, or KEV listing is provided. Avoid assuming unauthenticated exploitation without additional vendor confirmation.
Mitigation direction
- Upgrade Moodle to 3.9.3, 3.10, or a later supported release.
- If using Fedora packages, follow the referenced Fedora advisories.
- Restrict content bank item renaming permissions until patched.
- Check Moodle vendor guidance for any additional supported-version instructions.
Validation and detection
- Inventory Moodle instances and confirm their exact version.
- Identify roles allowed to rename content bank items.
- Review content bank item names for suspicious script-like content.
- Confirm patched systems no longer allow active JavaScript in item names.
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-79: User-session and phishing behavior lookup
Client-side and session-facing weaknesses should be reviewed alongside initial-access and user-execution behaviors. 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-2020-25702 mapping review
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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=1895437CVE reference · x_refsource_MISC
- https://moodle.org/mod/forum/discuss.php?d=413940CVE 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.
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.