CVE-2025-55143Network attack vector

Cross-site scripting via reflected response text

Published Sep 9, 2025 · Updated Sep 9, 2025

Reflected text injection in Ivanti secure-access gateways allows remote attackers to inject arbitrary text into HTTP responses. Affected releases are Connect Secure before 22.7R2.9 or 22.8R2, Policy Secure before 22.7R1.6, ZTA Gateway before 2.8R2.3-723, and Neurons for Secure Access before 22.8R1.4; Ivanti has not disclosed the affected endpoint or parameter. Exploitation is unauthenticated over the network but requires interaction with attacker-supplied content, limiting impact to the browser context.

CVSS severity6.1
Medium
EPSS probability0.71%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected text injection in Ivanti secure-access gateways allows remote attackers to inject arbitrary text into HTTP responses. Affected releases are Connect Secure before 22.7R2.9 or 22.8R2, Policy Secure before 22.7R1.6, ZTA Gateway before 2.8R2.3-723, and Neurons for Secure Access before 22.8R1.4; Ivanti has not disclosed the affected endpoint or parameter. Exploitation is unauthenticated over the network but requires interaction with attacker-supplied content, limiting impact to the browser context.

The record

CVE
CVE-2025-55143
Published
Sep 9, 2025
Updated
Sep 9, 2025
Vendor
Ivanti
Product
Connect Secure
Classifications
CWE-79, CAPEC-63
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ivanti · Connect SecureAffected versions are unavailable in this record.
Ivanti · Policy SecureAffected versions are unavailable in this record.
Ivanti · ZTA GatewayAffected versions are unavailable in this record.
Ivanti · Neurons for Secure AccessAffected versions are unavailable in this record.

Published CVSS scores

6.1IvantiCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC-63Cross-Site Scripting

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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