Skip to main content

Grav Plugin API CVE-2026-75830

| EUVDEUVD-2026-60594 HIGH
External Control of File Name or Path (CWE-73)
2026-08-18 VulnCheck GHSA-r93f-38mc-xpvv
Path Traversal Grav
7.1
CVSS 4.0 · Vendor: VulnCheck
Share

Severity by source

Vendor (VulnCheck) PRIMARY
7.1 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
8.5 HIGH

S:C chosen because traversal escapes the plugin's intended directory boundary into the broader filesystem; PR:L reflects mandatory editor-level authentication; no confidentiality impact identified.

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

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Aug 18, 2026 - 12:02 EUVD
Analysis Generated
Aug 18, 2026 - 11:51 vuln.today
CVE Published
Aug 18, 2026 - 11:19 cve.org
HIGH 7.1

DescriptionCVE.org

grav-plugin-api (getgrav/grav-plugin-api) versions >= 1.0.0-beta.10 and <= 1.0.14 contain a path traversal vulnerability in the PagesController::batchCopy() method. An incomplete fix for GHSA-qjq4-jp55-4mx2 left the user-controlled 'suffix' parameter (via POST /api/v1/pages/batch) unvalidated. An authenticated user with the api.pages.write permission (editor-level, not super-admin) can supply path traversal sequences (e.g. /../../../) in the suffix parameter to escape the intended user/pages/ directory and write attacker-controlled page content and page media to arbitrary filesystem locations writable by the web server process. The vulnerability is fixed in 1.0.15.

AnalysisAI

Path traversal in Grav Plugin API versions 1.0.0-beta.10 through 1.0.14 enables an authenticated editor-level user to write attacker-controlled page content and media to arbitrary filesystem locations accessible to the web server process. The root cause is an incomplete fix for a prior related path traversal (GHSA-qjq4-jp55-4mx2) that left the 'suffix' parameter of the PagesController::batchCopy() method unvalidated against directory escape sequences. …

Unlock full vulnerability intelligence

  • Risk assessment & exploitation conditions
  • Attack chain visualization
  • Remediation with exact patch versions
  • Threat intelligence from 22 sources
  • Personal watchlist & email alerts
Continue with Google Continue with GitHub

Free forever · No credit card required

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain editor-level API credentials
Delivery
Send crafted POST /api/v1/pages/batch request
Exploit
Supply path traversal sequences in suffix parameter
Execution
Bypass user/pages/ directory restriction
Impact
Write attacker-controlled content to arbitrary writable filesystem path
Sign in to reveal

Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session with the api.pages.write permission assigned, which is an editor-level role and not restricted to super-administrators - any contributor account granted page editing via the API is a potential threat actor. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 7.1 with vector AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L reflects a network-accessible, low-complexity attack requiring only editor-level credentials - a meaningful real-world threat wherever untrusted contributors hold api.pages.write permissions. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with a valid editor-level account sends a POST request to /api/v1/pages/batch with a suffix value such as /../../../var/www/html/backdoor.md, causing the batchCopy() method to write attacker-controlled Markdown content to a web-accessible path outside the intended pages directory. No public exploit code is confirmed, but the traversal mechanism is straightforward given the incomplete-fix history and the simplicity of path manipulation in POST parameters. …
Remediation Upgrade grav-plugin-api to version 1.0.15, which is the vendor-confirmed fix per advisory GHSA-g6j3-8jv9-ch5f at https://github.com/getgrav/grav/security/advisories/GHSA-g6j3-8jv9-ch5f. … Detailed patch versions, workarounds, and compensating controls in full report.
Sign in to read full assessment

Recommended ActionAI

Within 24 hours, identify all systems running Grav Plugin API versions 1.0.0-beta.10 through 1.0.14 and audit current editor-level account assignments. …

Sign in for detailed remediation steps and compensating controls.

Threat intelligence, references, and detailed analysis are available after sign-in.

More in Grav

View all
CVE-2025-66294 HIGH POC
8.8 Dec 01

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a Server-Side Template Injection (SSTI) vulnerability exists

CVE-2025-66301 CRITICAL POC
9.6 Dec 01

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, due to improper authorization checks when modifying critical

CVE-2025-50286 HIGH POC
8.1 Aug 06

A Remote Code Execution (RCE) vulnerability in Grav CMS v1.7.48 allows an authenticated admin to upload a malicious plug
CVE-2024-34082 CRITICAL POC
9.9 May 15

Grav is a file-based Web platform. Rated critical severity (CVSS 9.9), this vulnerability is remotely exploitable, low a
CVE-2021-47812 CRITICAL POC
9.8 Jan 16

GravCMS 1.10.7 allows unauthenticated remote attackers to write arbitrary YAML configuration files, leading to full serv
CVE-2025-66297 HIGH POC
8.8 Dec 01

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, a user with admin panel access and permissions to create or e
CVE-2025-66299 HIGH POC
8.8 Dec 01

Grav is a file-based Web platform. Prior to 1.8.0-beta.27, Grav CMS is vulnerable to a Server-Side Template Injection (S
CVE-2024-28119 HIGH POC
8.8 Mar 21

Grav is an open-source, flat-file content management system. Rated high severity (CVSS 8.8), this vulnerability is remot
CVE-2024-28118 HIGH POC
8.8 Mar 21

Grav is an open-source, flat-file content management system. Rated high severity (CVSS 8.8), this vulnerability is remot
CVE-2024-28117 HIGH POC
8.8 Mar 21

Grav is an open-source, flat-file content management system. Rated high severity (CVSS 8.8), this vulnerability is remot
CVE-2024-28116 HIGH POC
8.8 Mar 21

Grav is an open-source, flat-file content management system. Rated high severity (CVSS 8.8), this vulnerability is remot
CVE-2024-27921 HIGH POC
8.8 Mar 21

Grav is an open-source, flat-file content management system. Rated high severity (CVSS 8.8), this vulnerability is remot

Same weakness CWE-73 – External Control of File Name or Path

View all
CVE-2025-33053 HIGH POC
8.8
CVE-2023-4634 CRITICAL POC
9.8
CVE-2025-24054 MEDIUM POC
6.5
CVE-2025-0111 HIGH
7.1
CVE-2024-8517 CRITICAL POC
9.8
CVE-2024-55372 CRITICAL POC
9.8
CVE-2026-18048 HIGH POC
7.5
CVE-2024-55371 CRITICAL POC
9.8

Same technique Path Traversal

View all
CVE-2019-19781 CRITICAL POC
9.8
CVE-2021-21972 CRITICAL POC
9.8
CVE-2021-40444 HIGH POC
8.8
CVE-2021-27065 HIGH POC
7.8
CVE-2018-20250 HIGH POC
7.8
CVE-2022-37042 CRITICAL POC
9.8
CVE-2025-64446 CRITICAL POC
9.8
CVE-2022-30333 HIGH POC
7.5

Share

CVE-2026-75830 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy