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CVE Record

CVE-2021-31651: Cross Site Scripting (XSS) vulnerability in neofarg-cms 0.2.3 allows remoate attacker to run arbitrary code...

Cross Site Scripting (XSS) vulnerability in neofarg-cms 0.2.3 allows remoate attacker to run arbitrary code via the copyright field in copyright settings.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

NeoFrag CMS 0.2.3 reportedly has a cross-site scripting flaw in the copyright settings field. If an attacker can change or influence that field, malicious script could run in a user's browser when the setting is viewed. The public record does not provide CVSS, affected CPEs, a vendor fix, or evidence of active exploitation.

Executive priority

Prioritize confirmation over emergency response. The issue can affect browser trust and administrative sessions, but the public data lacks severity scoring, exploit confirmation, and remediation details. Organizations using NeoFrag CMS 0.2.3 should validate exposure and restrict configuration access promptly.

Technical view

CVE-2021-31651 describes XSS through the copyright field in copyright settings for neofarg-cms 0.2.3. The record does not identify the exact sink, required privileges, stored versus reflected behavior, browser context, or patch version. Treat the issue as source-limited until the GitHub issue or vendor guidance confirms exploit preconditions and remediation.

Likely exposure

Exposure appears limited to environments running neofarg-cms 0.2.3, especially administrative or content-management areas that save copyright settings. The CVE affected-product metadata is incomplete and lists vendor/product as n/a, so confirm installations by application inventory rather than CPE matching.

Exploitation context

The bundle does not cite CISA KEV inclusion or any source confirming active exploitation. The reference is a public GitHub issue, so defenders should assume public awareness but should not infer weaponized exploitation from the supplied evidence alone.

Researcher notes

Key gaps are privilege requirement, stored/reflected behavior, affected code path, and fixed version. The description says remote attacker and arbitrary code, but the supplied evidence supports XSS only; avoid expanding impact beyond browser-executed script without additional source confirmation.

Mitigation direction

  • Check NeoFrag project guidance and the referenced issue for an official fix or upgrade path.
  • Restrict access to copyright settings to trusted administrative users only.
  • Review stored copyright content and remove unexpected script-like markup.
  • Apply output encoding or sanitization if maintaining a private fork.
  • Monitor web logs and admin activity for suspicious setting changes.

Validation and detection

  • Inventory systems for NeoFrag or neofarg-cms 0.2.3 installations.
  • Confirm whether copyright settings accept and render unsanitized HTML or script content.
  • Review administrator accounts and recent changes to site copyright settings.
  • Check whether any vendor patch, commit, or maintained replacement version is available.
  • Document compensating controls if no official remediation is published.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

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cve · low confidence lookup

CVE-2021-31651 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.