Security readout for executives and security teams
Plain-English summary
CVE-2021-30109 is a stored cross-site scripting issue in Froala Editor 3.2.6. If an application lets users create rich-text hyperlinks, crafted content may be saved and later run in another user’s browser. This can create business risk where editors or administrators view user-submitted content.
Executive priority
Prioritize if Froala 3.2.6 is used in customer-facing portals, CMS workflows, support systems, or admin-reviewed submissions. Otherwise, treat as a dependency hygiene item pending vendor confirmation.
Technical view
Froala Editor 3.2.6 has a persistent XSS condition in the hyperlink creation module involving a crafted base64 string. The CVE record does not provide CVSS, CWE, a vendor-fixed version, or detailed affected CPEs. Public reference material is limited to the CVE records and a GitHub researcher write-up.
Likely exposure
Exposure is most likely in web applications embedding Froala Editor 3.2.6 where untrusted or low-privileged users can create or edit hyperlinks in rich-text content viewed by other users.
Exploitation context
The source bundle does not indicate CISA KEV listing or confirmed active exploitation. A public GitHub write-up exists, so defenders should assume the issue is publicly known, but not necessarily actively exploited.
Researcher notes
Evidence is sparse: no CVSS, CWE, CPE, patch version, or exploitation confirmation is provided in the bundle. The vulnerability is described as persistent XSS under certain conditions in the hyperlink module, so validation should focus on embedded editor version and content rendering paths.
Mitigation direction
- Inventory applications using Froala Editor, especially version 3.2.6.
- Check Froala/vendor guidance for fixed versions or recommended configuration changes.
- Restrict rich-text hyperlink creation to trusted users where feasible.
- Review stored user content for suspicious hyperlinks before privileged users view it.
- Apply defense-in-depth browser and content security controls where appropriate.
Validation and detection
- Confirm whether Froala Editor 3.2.6 is present in application dependencies.
- Identify workflows allowing users to create hyperlinks in rich-text fields.
- Review whether stored rich-text content is rendered to other users or administrators.
- Check vendor advisories or release notes for remediation status.
- Perform validation only in authorized staging environments.
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-2021-30109 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.
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
- https://github.com/Hackdwerg/CVE-2021-30109/blob/main/README.mdCVE reference, mitre
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.