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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

5.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

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

0.001 Low

EPSS

Percentile

27.0%

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"
      }
    ]
  }
]

5.5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

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

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

0.001 Low

EPSS

Percentile

27.0%

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