Security readout for executives and security teams
Plain-English summary
This flaw lets an authenticated user save malicious JavaScript into forma.lms course or profile fields. When another user views the stored content, the script may run in their browser. Business impact is mainly account/session exposure, content tampering, and trust damage inside learning portals.
Executive priority
Treat as a moderate web application risk. Prioritize remediation for internet-facing learning portals or environments with many contributors, because stored XSS can affect other users after one malicious edit.
Technical view
CVE-2020-36998 is a persistent XSS issue in forma.lms The E-Learning Suite 2.3.0.2. Reported affected inputs include course code, name, description, and an email parameter. CVSS 3.1 is 6.4 with low attack complexity, low privileges required, no user interaction, changed scope, and low confidentiality/integrity impact.
Likely exposure
Exposure is likely limited to organizations running forma.lms The E-Learning Suite 2.3.0.2, especially where low-privilege users can edit course or profile data.
Exploitation context
The bundle includes an ExploitDB reference, indicating public exploit information exists. CISA KEV status is false, and no cited source in the bundle confirms active exploitation.
Researcher notes
Evidence supports persistent XSS, CWE-79, and public exploit reference. The source bundle names 2.3.0.2 in the title and description, while the affected version field shows 0, so version scope should be verified against vendor or advisory data.
Mitigation direction
- Inventory forma.lms deployments and confirm whether version 2.3.0.2 is present.
- Check vendor guidance and current releases for an official fix or upgrade path.
- Restrict course and profile editing to trusted roles until remediated.
- Sanitize stored course and profile fields and encode output on render.
- Review existing records for suspicious script content and remove it.
Validation and detection
- Confirm whether unauthenticated or low-privilege users can access affected editing functions.
- Review course code, name, description, and email fields for stored script content.
- Test output encoding in a non-production environment without using live payloads.
- Check application logs for unusual edits to course or profile records.
- Verify remediation blocks script persistence and safe rendering of existing records.
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-2020-36998 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
- Medium
- CVSS
- 6.4 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
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.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N3.12.7VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N——VulnCheckVulnerability scoring details
Base CVSS 4.0 score
5.1MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Base CVSS 3.1 score
6.4MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-48478CVE reference, VulnCheck · exploit
- Vendor HomepageCVE reference, VulnCheck · product
- Software Download LinkCVE reference, VulnCheck · product
- VulnCheck Advisory: forma.lms The E-Learning Suite 2.3.0.2 - Persistent Cross-Site ScriptingCVE reference, VulnCheck · third-party-advisory
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.