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

7.6HIGH

Key Information:

Vendor

Apostrophecms

Status
Apostrophe
Vendor
CVE Published:
12 June 2026

What is CVE-2026-45012?

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.

Affected Version(s)

apostrophe <= 4.29.0

References

https://github.com/apostrophecms/apostrophe/security/advi...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.