Vulnerability Report

CVE-2017-16857

Title: Atlassian Bitbucket Auto Unapprove Plugin Path Traversal / LFI

Arbitrary File Access

Proof Of Concept

No public PoC currently indexed for CVE-2017-16857.

CWE Category CWE-362

Published Date Dec 05, 2017

Modified Date Jun 17, 2026

Exploit Status Not Found

Score 8.5 CVSS v3.0

Exploit Probability (EPSS)

0.59%

Vulnerability Summary

CVE-2017-16857: It is possible to bypass the bitbucket auto-unapprove plugin via minimal brute-force because it is relying on asynchronous events on the back-end. This allows an attacker to merge any code into unsuspecting repositories. This affects all versions of the auto-unapprove plugin, however since the auto-unapprove plugin is not bundled with Bitbucket Server it does not affect any particular version of Bitbucket.

Impacted Vendors

atlassian 1

Reference Links

https://jira.atlassian.com/browse/BSERV-10439 https://jira.atlassian.com/browse/BSERV-10439

CVSS v3.0

Source Entity [email protected]

Severity HIGH

8.5

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

6.0

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:N/AC:M/Au:S/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns