Atlassian Bitbucket Server < 4.0.0 CSRF/XSRF

Medium Nessus Network Monitor Plugin ID 9884


The remote Bitbucket server is affected by a Cross-Site Request Forgery (CSRF/XSRF) attack vector.


Versions of Bitbucket prior to 4.0.0 contain a flaw as HTTP requests do not require multiple steps, explicit confirmation, or a unique token when performing certain sensitive actions. By tricking a user into following a specially crafted link, a context-dependent attacker can perform a CSRF/XSRF attack causing the victim to make changes to project avatars.


Upgrade to Bitbucket version 4.0.0 or later.

See Also

Plugin Details

Severity: Medium

ID: 9884

Family: CGI

Published: 2017/01/16

Updated: 2019/03/06

Dependencies: 9566

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 4.3

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

CVSS v3.0

Base Score: 3.7

Temporal Score: 3.6

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

Patch Publication Date: 2015/09/21

Vulnerability Publication Date: 2015/03/18