CVE-2020-26210

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2020-26210
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-03 19:15:00 UTC
Updated2020-11-16 16:14:00 UTC
DescriptionIn 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 linked advisory provides a SQL query to test. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in version 0.30.4.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Bookstackapp Bookstack All All All All
Application Bookstackapp Bookstack All All All All

References

ReferenceSourceLinkTags
Beta Security Release v0.30.4 · BookStack MISC bookstackapp.com Exploit, Patch, Vendor Advisory
Cross-Site Scripting Through Link Attachments · Advisory · BookStackApp/BookStack · GitHub CONFIRM github.com Exploit, Third Party Advisory
Release BookStack Beta v0.30.4 · BookStackApp/BookStack · GitHub MISC github.com Third Party Advisory
Prevented possible XSS via link attachments · BookStackApp/BookStack@349162e · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report