Published: 09/12/2020 Updated: 10/12/2020

CVSS v2 Base Score: 5.5 | Impact Score: 4.9 | Exploitability Score: 8

CVSS v3 Base Score: 6.4 | Impact Score: 2.7 | Exploitability Score: 3.1

VMScore: 490

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:N

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/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade.

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Hi there 👋 Pentester, I like Crystal/Ruby and write security tools of dubious quality 💎 Crystal SDKs I'm working on Shodan Crobat Docker 📦 Containerisation security tools, scripts etc Docker Escape Tool Docker Security Checklist 💻 Other security tools, unassorted scripts etc Dependensee CVE API InfoSec Whitepaper scraper 📑 Notes/resources XSS Resourc

CWE-74 https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5 https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr https://bookstackapp.com/blog/beta-release-v0-30-5/https://nvd.nist.gov https://github.com/PercussiveElbow/PercussiveElbow

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CVE-2020-26260

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