CVE-2026-56701

Grav - XML External Entity Injection via SVG Upload

MEDIUM
6.5
CVSS Score
Published: June 23, 2026 at 12:13 PM UTC
Updated: October 25, 2026 at 11:10 PM UTC
2 products affected across 2 vendorsGrav Plugin AdminGrav

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.3%
SSVC
PoC

Description

Grav before 2.0.0-beta.2 contains an XML external entity injection vulnerability in SVG file upload processing that allows authenticated attackers to read arbitrary files. The application uses simplexml_load_string without disabling external entity loading, enabling attackers to inject XXE payloads via malicious SVG files to exfiltrate sensitive data.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.0.0
Affected range stops below 2.0.0, so it looks safe — our inference, not a vendor statement
0 ≤ v < 2.0.0-beta.20
Vendor states this is fixed in 2.0.0-beta.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-611

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