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TI-2021-20376 Aliases CVE-2021-45018GHSA-ffw4-h2r2-99hc

Cross Site Scripting (XSS) vulnerability exists in Catfish <=6.3.0 via a Google search in…

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

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

Summary

Cross Site Scripting (XSS) vulnerability exists in Catfish <=6.3.0 via a Google search in url:/catfishcms/index.php/admin/Index/addmenu.htmland then the .html file on the website that uses this editor (the file suffix is allowed).

Why it matters now

EPSS 0.00574 47th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:catfish-cms:catfish_cms:*:*:*:*:*:*:*:*up to 6.3.0VulnerableCatfish-cms
  • cpe:2.3:a:catfish-cms:catfish_cms:*:*:*:*:*:*:*:* Versions up to 6.3.0 Vulnerable ·Catfish-cms

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-45018
  2. 2026-10-03 Alias added: GHSA-ffw4-h2r2-99hc

References

  • TI-2018-13253 A CSRF issue was discovered in admin/Index/addmanageuser.html in Catfish CMS 4.8.30. CVSS 3.0HIGH 8.8
  • TI-2021-20375 Cross Site Request Forgery (CSRF) vulnerability exits in Catfish <=6.1.* when you upload… CVSS 3.1HIGH 8.8
  • TI-2020-14743 A cross site scripting (XSS) vulnerability in Catfish CMS 4.9.90 allows attackers to… CVSS 3.1MEDIUM 6.1
  • TI-2018-13252 An XSS issue was discovered in Catfish CMS 4.8.30, related to "write source code," a similar issue to CVE-2018-13999. CVSS 3.0MEDIUM 5.4
  • TI-2018-07110 Catfish CMS V4.7.21 allows XSS via the pinglun parameter to cat/index/index/pinglun (aka an authenticated comment). CVSS 3.0MEDIUM 5.4
  • TI-2018-10117 Catfish CMS v4.7.9 allows XSS via the admin/Index/write.html editorValue parameter (aka… CVSS 3.0MEDIUM 4.8

Sources