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TI-2021-02982 Aliases CVE-2021-4103GHSA-cxm3-v4mv-6mh8

Cross-site Scripting (XSS) - Stored in vanessa219/vditor

Priority LOW 26CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

Cross-site Scripting (XSS) - Stored in GitHub repository vanessa219/vditor prior to 1.0.34.

Why it matters now

EPSS 0.00664 52nd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed vanessa219/vditor (vanessa219): 1.0.34vditor (npm): 3.8.11

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
siyuan-notevanessa219/vditorbefore 1.0.341.0.34Patch availableCNA
—vditor (npm)before 3.8.113.8.11Patch availableGHSA-cxm3-v4mv-6mh8
  • vanessa219/vditor Vendorsiyuan-note Affected before 1.0.34 Fixed in 1.0.34 Patch available CNA
  • vditor (npm) Vendor— Affected before 3.8.11 Fixed in 3.8.11 Patch available GHSA-cxm3-v4mv-6mh8

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:b3log:vditor:*:*:*:*:*:*:*:*before 1.0.34Vulnerablesiyuan-note
  • cpe:2.3:a:b3log:vditor:*:*:*:*:*:*:*:* Versions before 1.0.34 Vulnerable ·siyuan-note

Remediation

  • Fix · CNA vanessa219/vditor (vanessa219) Fixed in 1.0.34
  • Fix · GHSA-cxm3-v4mv-6mh8 vditor (npm) Fixed in 3.8.11 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-4103
  2. 2026-10-03 Alias added: GHSA-cxm3-v4mv-6mh8
  3. 2026-10-04 EPSS moved to the 50th–90th percentile

References

  • TI-2021-12520 vditor vulnerable to Cross-site Scripting CVSS 3.1MEDIUM 6.1
  • TI-2024-22784 Vditor 3.10.3 allows XSS via an attribute of an A element. CVSS 3.1MEDIUM 6.1
  • TI-2024-26189 vditor v.3.9.8 and before is vulnerable to Arbitrary file read via a crafted data packet. CVSS 3.1MEDIUM 5.9
  • TI-2022-00276 Cross-site Scripting (XSS) - Stored in vanessa219/vditor CVSS 3.1MEDIUM 5.4
  • TI-2022-00267 Cross-site Scripting (XSS) - Stored in vanessa219/vditor CVSS 3.1MEDIUM 5.4

Sources