Cross-site Scripting (XSS)

Grav is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper handling of invalid UTF-8 bytes in the XSS detection function, which allows an authenticated attacker with page-edit permissions to bypass the XSS safety check, store malicious JavaScript, and execute it in a...

Insufficiently Protected Credentials

Overview getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS. Affected versions of this package are vulnerable to Insufficiently Protected Credentials via the Twig sandbox configuration, which contains an incomplete default denylist. An attacker can access...

CVE-2026-75834: Improper Neutralization of Input During Web Page Generation

Grav before 2.0.14 contains a stored cross-site scripting vulnerability in the Security::detectXss function system/src/Grav/Common/Security.php. All XSS detection patterns use the PCRE /u UTF-8 modifier, so a single invalid UTF-8 byte anywhere in page content causes pregmatch to return false for...

EUVD-2020-18835

Malware in sbrugna...

EUVD-2022-3579

Malicious code in bioql PyPI...

CVE-2020-26210

In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the...

CVE-2020-26211

In BookStack before version 0.30.4, a user with permissions to edit a page could insert JavaScript code through the use of javascript: URIs within a link or form which would run, within the context of the current page, when clicked or submitted. Additionally, a user with permissions to edit a pag...

GHSA-CH37-CH8W-CFRQ Bookstack Cross-site Scripting vulnerability

In BookStack before version 0.30.4, a user with permissions to edit a page could insert JavaScript code through the use of javascript: URIs within a link or form which would run, within the context of the current page, when clicked or submitted. Additionally, a user with permissions to edit a pag...

CVE-2020-26260: Improper Neutralization of Special Elements in Output Used by a Downstream Component

BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/o...

CVE-2020-26210 Cross-Site Scripting in BookStack

In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the...