CVE-2026-45012: Apostrophe has authenticated SSRF in rich-text widget import via @apostrophecms/area/validate-widget
Vulnerability summary
CVE-2026-45012 is a high (CVSS 7.6) Server-Side Request Forgery (SSRF) vulnerability in apostrophecms apostrophe. EPSS estimates a 0.31% chance of exploitation in the next 30 days, higher than 22.5% of scored vulnerabilities.
Timeline
- 12-06-2026PublishedVulnerability first disclosed.
- 15-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · NpmEcosystem advisory · calculated7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
- NVDNIST7.6HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
EPSS trend
Probability
0.31%
Chance of exploitation in the next 30 days
Percentile
23%
Versus all other CVEs
30-day change
Increase +0.11 pp
From 0.20% on 22-09-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Apostrophecms1 product
- apostrophe≤ 4.29.0
Npm1 product
- apostrophe≤ 4.29.0
2 vendors · 2 products
