XSS in Vtenext
CVE-2025-71453
vtenext before 25.02.2 contains a reflected cross-site scripting vulnerability in modules/Home/HomeWidgetBlockList.php that echoes unsanitized widgetId keys from the widgetInfoList JSON parameter. Attackers can induce a logged-in user to submit a crafted POST request with HTML in widgetId keys, executing JavaScript in the victim's vtenext session.
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: 0.002 (15.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
The 30-day trend appears once there are two daily scores.
Affected products
Weakness classification (CWE)
References
- 0xbro.red/posts/vtenext-25-02-a-three-way-path-to-rce/ (technical-description)
- blog.sicuranext.com/vtenext-25-02-a-three-way-path-to-rce/ (exploit, third-party-advisory)
- usermanual.vtenext.com/books/release-notes-history/page/vtenext-25022-release-n… (release-notes)
- www.vulncheck.com/advisories/vtenext-before-25.02.2-reflected-xss-via-widgetinf… (third-party-advisory)
Frequently asked questions
- What is CVE-2025-71453?
- CVE-2025-71453 is a medium-severity vulnerability in Vtenext, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-11-04.
- How severe is CVE-2025-71453?
- Medium severity. CVSS v3 base score is 6.1 out of 10.