6.1

CVE-2025-55143: ivanti connect_secure Cross-site Scripting

CVSS: 6.1v3.1MediumAnalyzed
Published 09-09-2025Last modified 09-09-2025
Open JSON

Vulnerability summary

CVE-2025-55143 is a medium (CVSS 6.1) Cross-site Scripting vulnerability in ivanti connect_secure. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.2% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.74%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-09-2025
    PublishedVulnerability first disclosed.
  2. 09-09-2025
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

+0.03 pp

From 0.71% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ivanti4 products
  • connect_secure< 22.7 | 22.7 | 22.7:r1 | 22.7:r1.1 | 22.7:r1.2 | 22.7:r1.3 | 22.7:r1.4 | 22.7:r1.5 | 22.7:r2 | 22.7:r2.1 | 22.7:r2.2 | 22.7:r2.3 | 22.7:r2.4 | 22.7:r2.5 | 22.7:r2.6 | 22.7:r2.7 | 22.7:r2.8
  • neurons_for_secure_access< 22.8 | 22.8:r1 | 22.8:r1.1 | 22.8:r1.2 | 22.8:r1.3
  • policy_secure< 22.7 | 22.7 | 22.7:r1 | 22.7:r1.1 | 22.7:r1.2 | 22.7:r1.3 | 22.7:r1.4 | 22.7:r1.5
  • zero_trust_access_gateway22.8:r2.2

1 vendor · 4 products

References

1 links