CVE-2026-56701Public exploitNetwork attack vector

Authenticated file disclosure via SVG entity expansion

Published Jun 23, 2026 · Updated Jun 23, 2026

XML external entity injection in Grav before 2.0.0-beta.2 allows remote authenticated users to read server files through SVG uploads. The VectorImageMedium constructor passes uploaded SVG content to simplexml_load_string without blocking external entities, so supplied file URIs are resolved. Admin-panel access and SVG upload permission are required; exploitation exposes files readable by the Grav process without modifying them.

CVSS severity7.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML external entity injection in Grav before 2.0.0-beta.2 allows remote authenticated users to read server files through SVG uploads. The VectorImageMedium constructor passes uploaded SVG content to simplexml_load_string without blocking external entities, so supplied file URIs are resolved. Admin-panel access and SVG upload permission are required; exploitation exposes files readable by the Grav process without modifying them.

The record

CVE
CVE-2026-56701
Published
Jun 23, 2026
Updated
Jun 23, 2026
Vendor
Grav
Product
Grav
Classifications
CWE-611, CAPEC-221, T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 23, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2.0.0-beta.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grav · Gravversion=0 <2.0.0-beta.2

Published CVSS scores

7.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
6.5GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
CAPEC-221Data Serialization External Entities Blowup
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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