Security readout for executives and security teams
CVE-2021-31674 is a cross-site scripting issue in Cyclos 4 PRO 4.14.7 and earlier. A remote unauthenticated attacker could cause JavaScript to run in a user’s browser through improperly validated error input. Business impact depends on whether a Cyclos portal is exposed and whether users can be lured to the affected path. Exposure is likely limited to organizations running Cyclos 4 PRO 4.14.7 or earlier, especially internet-accessible deployments. The source bundle does not identify broader affected products or CPEs. Treat as a targeted application risk, not a confirmed widespread emergency. Prioritize if Cyclos supports financial, membership, or payment workflows, or if the portal is public-facing. Lack of vendor fix detail in the sources means teams should verify directly with Cyclos guidance. Mitigation focus: Identify any Cyclos 4 PRO deployments and confirm exact versions.; Check Cyclos vendor guidance for a fixed version or official mitigation.; Prioritize upgrade or remediation for internet-facing Cyclos portals..
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
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ATT&CK lookup starting points
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CVE-2021-31674 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.
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://tf1t.gitbook.io/mycve/cylos/cyclos-4.14.7-dom-based-cross-site-scripting-in-undefined-enum-cve-2021-31674CVE reference, mitre
- https://www.exploit-db.com/exploits/50908CVE 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.