getgrav Grav up to 2.0.14 detectXss cross site scripting

Summaryinfo

A vulnerability classified as problematic has been found in getgrav Grav. The affected element is the function detectXss. Performing a manipulation results in cross site scripting. This vulnerability is identified as CVE-2026-75828. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in getgrav Grav. It has been classified as problematic. This affects the function detectXss. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. The summary by CVE is:

Grav before 2.0.15 contains a stored cross-site scripting vulnerability in the detectXss() function where unpaired quotes in unquoted attribute values bypass event-handler detection. Authenticated editors can inject event handlers like onerror= that pass validation and execute in visitor browsers when page content is rendered.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-75828 since 08/18/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 2.0.15 eliminates this vulnerability.

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Productinfo

Vendor

• getgrav

Name

• Grav

Version

• 1.0.0-beta.15
• 1.0.0-beta.17
• 1.0.0-rc.16
• 1.0.3
• 1.0.4
• 1.0.6
• 1.0.10
• 1.0.13
• 1.0.14
• 1.0.15
• 1.2.0
• 1.4.0
• 1.4.3
• 1.4.7
• 1.7.28
• 1.7.53
• 1.10.49.5
• 1.10.53
• 2.0.0
• 2.0.0-beta.2
• 2.0.0-rc.2
• 2.0.0-rc.8
• 2.0.1
• 2.0.2
• 2.0.4
• 2.0.7
• 2.0.9
• 2.0.11
• 2.0.13
• 2.0.14

Website

• Product: https://github.com/getgrav/grav/

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