XSS in Ivanti Connect Secure
CVE-2025-55143
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Ivanti Connect Secure — versions 22.7R2.9, 22.8R2
- Ivanti Connect Secure — versions 22.7
- Ivanti Neurons For Secure Access — versions 22.8R1.4 (Fix deployed on 02-Aug-2025)
- Ivanti Neurons For Secure Access — versions 22.8
- Ivanti Policy Secure — versions 22.7R1.6
- Ivanti Policy Secure — versions 22.7
- Ivanti Zero Trust Access Gateway — versions 22.8
- Ivanti Zta Gateway — versions 2.8R2.3-723
Weakness classification (CWE)
References
- 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-55143?
- CVE-2025-55143 is a medium-severity vulnerability in Ivanti Connect Secure, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-09-09.
- How severe is CVE-2025-55143?
- Medium severity. CVSS v3 base score is 6.1 out of 10.