CVE-2026-112904: Vvveb path traversal in backup functions

CVE-2026-112904 · Severity: high · CVSS 8.7 · Published 2026-10-23

Vvveb is a content management system with a page builder used to create websites and online stores. An authenticated administrator can exploit unsanitized file path handling in the backup controller to read arbitrary files from the server or write database dumps to unintended locations, potentially exposing sensitive configuration data or credentials.

Technologies: Vvveb. Vendors: Vvveb.

Quick answers

Is CVE-2026-112904 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-112904 being exploited in the wild.
How severe is CVE-2026-112904?
High severity, with a CVSS score of 8.7, published 23 October 2026.
Which products and versions are affected?
Vvveb 1.0.8.6 and prior.
Is there a fix for CVE-2026-112904?
Yes: fixed in 1.0.8.7. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-112904 attacked?
It is attacked over the network.
Am I affected by CVE-2026-112904?
Check whether you run Vvveb at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 1.0.8.7

Technical details

The nextRestore() and nextBackup() functions in the backup controller concatenate unsanitized GET parameter input directly to DIR_BACKUP path construction, enabling path traversal attacks. An authenticated administrator can read arbitrary server-accessible files via nextRestore() (executed as SQL queries) or write SQL dump content containing credentials to arbitrary writable paths via nextBackup(), while sibling functions correctly use sanitizeFileName().

Affected products

  • Vvveb Vvveb 1.0.8.6 and prior

Timeline

  • 2026-10-18: disclosed
  • 2026-10-23: advisory

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.