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4 vulnerabilities found for grav-plugin-form by getgrav

CVE-2026-42845 (GCVE-0-2026-42845)

Vulnerability from nvd – Published: 2026-05-11 15:44 – Updated: 2026-05-12 13:49
VLAI?
Title
Grav: Anonymous Page Content Overwrite via Form File Upload filename Override
Summary
The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0 , there is an unauthenticated page-content overwrite via file upload (GHSA-w4rc-p66m-x6qq). Public form uploads now strip path components from the POST-supplied filename and hard-block page-content extensions (`md`, `yaml`, `yml`, `json`, `twig`, `ini`) regardless of the configurable dangerous-extensions list. A permissive `accept` policy combined with the default `destination: self@` could otherwise let an attacker overwrite the page's own `.md` and pivot to super-admin via a `process: save` action. This vulnerability is fixed in 9.1.0.
Severity ?
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
getgrav grav-plugin-form Affected: < 9.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42842 (GCVE-0-2026-42842)

Vulnerability from nvd – Published: 2026-05-11 15:29 – Updated: 2026-05-11 18:25
VLAI?
Title
grav-plugin-form: XSS via Taxonomy Field Values in Admin Panel
Summary
The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Grav CMS Form plugin's select field template. Taxonomy tag and category values are rendered with the Twig |raw filter in the admin panel, bypassing the global autoescape protection. An editor-level user can inject arbitrary JavaScript that executes in any administrator's browser session when they view or edit any page in the admin panel. This vulnerability is fixed in 9.1.0.
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-42845 (GCVE-0-2026-42845)

Vulnerability from cvelistv5 – Published: 2026-05-11 15:44 – Updated: 2026-05-12 13:49
VLAI?
Title
Grav: Anonymous Page Content Overwrite via Form File Upload filename Override
Summary
The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0 , there is an unauthenticated page-content overwrite via file upload (GHSA-w4rc-p66m-x6qq). Public form uploads now strip path components from the POST-supplied filename and hard-block page-content extensions (`md`, `yaml`, `yml`, `json`, `twig`, `ini`) regardless of the configurable dangerous-extensions list. A permissive `accept` policy combined with the default `destination: self@` could otherwise let an attacker overwrite the page's own `.md` and pivot to super-admin via a `process: save` action. This vulnerability is fixed in 9.1.0.
Severity ?
7.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P
CWE
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
getgrav grav-plugin-form Affected: < 9.1.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42842 (GCVE-0-2026-42842)

Vulnerability from cvelistv5 – Published: 2026-05-11 15:29 – Updated: 2026-05-11 18:25
VLAI?
Title
grav-plugin-form: XSS via Taxonomy Field Values in Admin Panel
Summary
The form plugin for Grav adds the ability to create and use forms. Prior to 9.1.0, a Stored Cross-Site Scripting (XSS) vulnerability exists in the Grav CMS Form plugin's select field template. Taxonomy tag and category values are rendered with the Twig |raw filter in the admin panel, bypassing the global autoescape protection. An editor-level user can inject arbitrary JavaScript that executes in any administrator's browser session when they view or edit any page in the admin panel. This vulnerability is fixed in 9.1.0.
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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