Security readout for executives and security teams
Plain-English summary
CVE-2018-20758 is a cross-site scripting issue in MODX Revolution through v2.7.0-pl. User Settings fields, including Description, could allow unsafe script content to run in a browser. Business impact depends on who can edit those settings and who later views them.
Executive priority
Treat this as a targeted web application hygiene issue, not an emergency based on current evidence. Prioritize systems with many users, admin-facing workflows, or sensitive authenticated sessions.
Technical view
The CVE describes XSS in MODX Revolution through v2.7.0-pl via User Settings such as Description. The source bundle does not include CVSS, CWE, patch details, exploit details, or a vendor advisory beyond the referenced GitHub issue.
Likely exposure
Organizations running MODX Revolution through v2.7.0-pl may be exposed, especially where multiple users can edit profile or settings fields viewed by administrators or other privileged users.
Exploitation context
The CVE is public and references a GitHub issue. The source bundle does not show CISA KEV status, active exploitation, public exploit code, or confirmed exploitation in the wild.
Researcher notes
Evidence is sparse. The CVE identifies the product, version ceiling, and vulnerable input area, but not the exact sink, privilege requirement, patch commit, or exploitability constraints. Validate locally without weaponized payloads.
Mitigation direction
- Identify any MODX Revolution deployments and confirm their exact version.
- Review MODX vendor guidance and the linked issue for fixed-version information.
- Upgrade if MODX identifies a fixed release for this issue.
- Restrict User Settings editing to trusted accounts until remediation is confirmed.
- Review stored user Description and settings fields for suspicious content.
Validation and detection
- Confirm whether any deployment runs MODX Revolution through v2.7.0-pl.
- Check whether untrusted users can edit User Settings fields.
- Review audit logs for recent changes to user Description or settings fields.
- Verify user-controlled settings render with proper output encoding after remediation.
- Document affected instances, remediation status, and remaining uncertainty.
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.
CVE-2018-20758 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://github.com/modxcms/revolution/issues/14103CVE reference · x_refsource_MISC
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.