Security readout for executives and security teams
Plain-English summary
Eyoucms v1.4.1 has a stored cross-site scripting issue in the web_attr_2 field. An authenticated attacker could save malicious script or HTML that later runs in another user's browser. The provided sources do not include a CVSS score, confirmed fix version, or active exploitation evidence.
Executive priority
Treat this as an exposure-confirmation item rather than an emergency based on the supplied evidence. If Eyoucms v1.4.1 is internet-facing or managed by many users, prioritize remediation because stored XSS can affect administrators and site visitors.
Technical view
CVE-2020-21930 is a stored XSS vulnerability affecting the web_attr_2 field in Eyoucms v1.4.1. The CVE description says authenticated attackers can execute arbitrary web scripts or HTML. The bundle does not provide CWE, CVSS, patch, or detailed product metadata beyond the description and linked GitHub issue.
Likely exposure
Exposure appears limited to organizations running Eyoucms v1.4.1, especially where authenticated users can access the affected content or configuration path. Public users may be impacted if stored script is rendered to them, but the provided sources do not define the exact affected page or role requirements.
Exploitation context
The source bundle marks KEV as false, and no cited source states active exploitation. Exploitation requires authenticated access according to the CVE description. Stored XSS can support session theft, unwanted actions, or content manipulation depending on privileges and browser context.
Researcher notes
The CVE record identifies Eyoucms v1.4.1 and web_attr_2, but the structured affected-product fields are n/a. No CVSS, CWE, patch, or exploit-in-the-wild evidence is included. Validate assumptions against the linked GitHub issue and local application behavior.
Mitigation direction
- Identify any Eyoucms v1.4.1 deployments and prioritize review.
- Check Eyoucms vendor guidance or repository issue updates for a fixed version.
- Restrict authenticated content management access to trusted users only.
- Apply output encoding and input validation where local customization controls rendering.
- Monitor for unexpected script or HTML in affected content fields.
Validation and detection
- Confirm whether Eyoucms v1.4.1 is present in asset inventory.
- Review authenticated roles able to modify the web_attr_2 field.
- Inspect existing stored values for unexpected script or HTML content.
- Check vendor repository issue history for remediation guidance.
- Verify deployed versions after any upgrade or vendor-provided fix.
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-2020-21930 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/eyoucms/eyoucms/issues/9CVE 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.