CVE-2026-45012

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

Published: Jun 12, 2026Updated: Jun 15, 2026 Sources: CVE List NVDCWE-918

7.6HIGH

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.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:LIntegrity

Low

A:LAvailability

Low

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Weaknesses

CWE-918

Affected Products

apostrophecms

commercialaka apostrophe

apostropheOn-prem

Web & CMS Plugins / cms-core

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Command and Control

Initial Access

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References

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

github.com

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