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TI-2018-04050 Aliases CVE-2018-5545GHSA-mxr4-27j9-9x37

Improper input validation in F5 WebSafe Alert Server

Priority MEDIUM 43CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

On F5 WebSafe Alert Server 1.0.0-4.2.6, a malicious, authenticated user can execute code on the alert server by using a maliciously crafted payload.

Why it matters now

EPSS 0.02394 84th percentileScored 2026-11-07
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
F5F5 WebSafe Alert Server1.0.0-4.2.6—No fix listedCNA
  • F5 WebSafe Alert Server VendorF5 Affected 1.0.0-4.2.6 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:f5:websafe_alert_server:*:*:*:*:*:*:*:*1.0.0 – 4.2.6VulnerableF5
  • cpe:2.3:a:f5:websafe_alert_server:*:*:*:*:*:*:*:* Versions 1.0.0 – 4.2.6 Vulnerable ·F5

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-5545
  2. 2026-10-03 Alias added: GHSA-mxr4-27j9-9x37

References

Advisory 1

  • TI-2016-04535 A Cross Site Scripting (XSS) vulnerability in versions of F5 WebSafe Dashboard 3.9.x and… CVSS 3.0MEDIUM 6.1
  • TI-2016-04536 Cross-Site-Scripting (XSS) vulnerabilities in F5 WebSafe Dashboard 3.9.5 and earlier, aka… CVSS 3.0MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences