CVE Explorer
CVE-2026-53607
ApostropheCMS is an open-source Node.js content management system. In versions up to and including 4.30.0, when `prettyUrls: true` is enabled on `@apostrophecms/file` (a documented SEO feature for serving uploaded files at clean URLs), the public pretty-URL handler builds the upstream URL using the raw `Host` HTTP request header. That URL is then `fetch`'ed and the response body + headers are streamed straight back to the requester. Because `Host` is fully attacker-controlled, an unauthenticated
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"apostrophe","vendor":"apostrophecms","versions":[{"status":"affected","version":"<= 4.30.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bc1f3eec4f515940078027cc00e0a97304f7ff69a086d8dc379e2309ff7ce592 · sha256:893c208123e6402f… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:bc1f3eec4f515940078027cc00e0a97304f7ff69a086d8dc379e2309ff7ce592 · sha256:893c208123e6402f… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:bc1f3eec4f515940078027cc00e0a97304f7ff69a086d8dc379e2309ff7ce592 · sha256:893c208123e6402f… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"tags":["exploit"],"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-34pj-2622-jvxq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc1f3eec4f515940078027cc00e0a97304f7ff69a086d8dc379e2309ff7ce592 · sha256:893c208123e6402f… · /containers/adp/0/references/0
{"name":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-34pj-2622-jvxq","tags":["x_refsource_CONFIRM"],"url":"https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-34pj-2622-jvxq"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bc1f3eec4f515940078027cc00e0a97304f7ff69a086d8dc379e2309ff7ce592 · sha256:893c208123e6402f… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.