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2 vulnerabilities found for ai-helper by @apostrophecms
CVE-2026-113671 (GCVE-0-2026-113671)
Vulnerability from nvd – Published: 2026-10-20 17:43 – Updated: 2026-10-20 18:21
VLAI
EPSS
VEX
Title
ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF
Summary
ApostropheCMS is an open-source Node.js content management system. From 1.0.0-beta.10 until 1.0.0-beta.13 of the AI helper, an editor with image-generation capability can create a base64-generated image record without a stored provider URL and invoke image acceptance on a deployment using local relative storage with no trusted global base URL. The server resolves the fixed uploads path against a request-controlled Host-derived origin, enabling bounded server-side requests to an attacker-selected host, port, and HTTP origin, but not arbitrary-path retrieval or the stored-provider and absolute-storage configurations. This issue is fixed in AI helper 1.0.0-beta.13.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 18:20 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/apostrophecms/apostrophe/secur… | x_refsource_CONFIRM |
| https://github.com/apostrophecms/apostrophe/commi… | x_refsource_MISC |
| https://github.com/apostrophecms/apostrophe/commi… | x_refsource_MISC |
| https://github.com/apostrophecms/apostrophe/relea… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| apostrophecms | apostrophe |
Affected:
>= 4.25.0, < 4.33.0
|
|
| @apostrophecms | ai-helper |
Affected:
>= 1.0.0-beta.10, < 1.0.0-beta.13
|
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"timestamp": "2026-10-20T18:20:48.654708Z",
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"url": "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-527g-ff96-x6wj"
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"vendor": "apostrophecms",
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}
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},
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}
],
"metrics": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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{
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}
],
"source": {
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"discovery": "UNKNOWN"
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"title": "ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF"
}
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CVE-2026-113671 (GCVE-0-2026-113671)
Vulnerability from cvelistv5 – Published: 2026-10-20 17:43 – Updated: 2026-10-20 18:21
VLAI
EPSS
VEX
Title
ApostropheCMS: Host header controls server-side image fetch origin in @apostrophecms/ai-helper, enabling authenticated SSRF
Summary
ApostropheCMS is an open-source Node.js content management system. From 1.0.0-beta.10 until 1.0.0-beta.13 of the AI helper, an editor with image-generation capability can create a base64-generated image record without a stored provider URL and invoke image acceptance on a deployment using local relative storage with no trusted global base URL. The server resolves the fixed uploads path against a request-controlled Host-derived origin, enabling bounded server-side requests to an attacker-selected host, port, and HTTP origin, but not arbitrary-path retrieval or the stored-provider and absolute-storage configurations. This issue is fixed in AI helper 1.0.0-beta.13.
Severity
4.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 18:20 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/apostrophecms/apostrophe/secur… | x_refsource_CONFIRM |
| https://github.com/apostrophecms/apostrophe/commi… | x_refsource_MISC |
| https://github.com/apostrophecms/apostrophe/commi… | x_refsource_MISC |
| https://github.com/apostrophecms/apostrophe/relea… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| apostrophecms | apostrophe |
Affected:
>= 4.25.0, < 4.33.0
|
|
| @apostrophecms | ai-helper |
Affected:
>= 1.0.0-beta.10, < 1.0.0-beta.13
|
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"timestamp": "2026-10-20T18:20:48.654708Z",
"version": "2.0.3"
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],
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}
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{
"product": "apostrophe",
"vendor": "apostrophecms",
"versions": [
{
"status": "affected",
"version": "\u003e= 4.25.0, \u003c 4.33.0"
}
]
},
{
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"vendor": "@apostrophecms",
"versions": [
{
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}
],
"metrics": [
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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