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CVE-2017-16857

27
FAUCET Score

CVE-2017-16857 describes a bypass vulnerability in the Atlassian Bitbucket Auto-Unapprove plugin, allowing attackers to merge unauthorized code into repositories. This high-severity flaw (CVSS 8.5) leverages asynchronous backend events, requiring low privileges and high attack complexity to achieve high impact across confidentiality, integrity, and availability. While no public exploit code or active exploitation is reported, its potential to compromise code integrity makes it a significant risk for organizations utilizing the affected plugin. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:*:*:*:*:*:*:*
1.0.0CPE matchmatch criteria
cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.0.0:beta1:*:*:*:*:*:*
1.1.0CPE matchmatch criteria
cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.1.0:*:*:*:*:*:*:*
1.2.0CPE matchmatch criteria
cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:1.2.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:atlassian:bitbucket_auto_unapprove_plugin:2.0.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
6.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.59%
Probability of exploitation in next 30 days
EPSS Percentile
44.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 40th percentile among its peer group of 1,162 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

jira.atlassian.com / browse/BSERV-10439
Issue TrackingVendor Advisory