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cve[email protected]CVE-2020-26260
HistoryDec 09, 2020 - 5:15 p.m.

CVE-2020-26260

2020-12-0917:15:30
CWE-74
web.nvd.nist.gov
17
bookstack
cve-2020-26260
security vulnerability
image url manipulation
unauthorized access

6.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

6.1 Medium

AI Score

Confidence

High

5.5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

26.9%

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.

Affected configurations

Vulners
NVD
Node
bookstackappbookstackRange<30.5
VendorProductVersionCPE
bookstackappbookstack*cpe:2.3:a:bookstackapp:bookstack:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "BookStack",
    "vendor": "BookStackApp",
    "versions": [
      {
        "status": "affected",
        "version": ">= v0.7, < v0.30.5"
      }
    ]
  }
]

6.4 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

6.1 Medium

AI Score

Confidence

High

5.5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

26.9%

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