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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.

PUBLISHED Reserved 2026-05-08 | Published 2026-06-12 | Updated 2026-06-15 | Assigner GitHub_M




HIGH: 7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Problem types

CWE-918: Server-Side Request Forgery (SSRF)

Product status

<= 4.29.0
affected

References

github.com/...trophe/security/advisories/GHSA-pr28-mf3q-qpg6 exploit

github.com/...trophe/security/advisories/GHSA-pr28-mf3q-qpg6

cve.org (CVE-2026-45012)

nvd.nist.gov (CVE-2026-45012)

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