Ivanti Connect Secure HTTP Response cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Ivanti Connect Secure, Policy Secure, ZTA Gateway and Neurons for Secure Access. Impacted is an unknown function of the component HTTP Response Handler. This manipulation causes cross site scripting. This vulnerability is tracked as CVE-2025-55143. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Ivanti Connect Secure, Policy Secure, ZTA Gateway and Neurons for Secure Access (affected version unknown). Affected by this vulnerability is an unknown functionality of the component HTTP Response Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Reflected text injection in Ivanti Connect Secure before 22.7R2.9 or 22.8R2, Ivanti Policy Secure before 22.7R1.6, Ivanti ZTA Gateway before 2.8R2.3-723 and Ivanti Neurons for Secure Access before 22.8R1.4 (Fix deployed on 02-Aug-2025) allows a remote unauthenticated attacker to inject arbitrary text into a crafted HTTP response. User interaction is required.

The advisory is shared at forums.ivanti.com. This vulnerability is known as CVE-2025-55143 since 08/07/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.1
CNA Vector (ivanti): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/07/2025 CVE reserved
09/09/2025 +33 days Advisory disclosed
09/09/2025 +0 days VulDB entry created
09/09/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: forums.ivanti.com
Status: Confirmed

CVE: CVE-2025-55143 (🔒)
GCVE (CVE): GCVE-0-2025-55143
GCVE (VulDB): GCVE-100-323317

Entryinfo

Created: 09/09/2025 19:57
Changes: 09/09/2025 19:57 (62)
Complete: 🔍
Cache ID: 216::103

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