CVE-2017-18088

Various plugin servlet resources in Atlassian Bitbucket Server before version 5.3.7 (the fixed version for 5.3.x), from version 5.4.0 before 5.4.6 (the fixed version for 5.4.x), from version 5.5.0 before 5.5.6 (the fixed version for 5.5.x), from version 5.6.0 before 5.6.3 (the fixed version for 5.6.x), from version 5.7.0 before 5.7.1 (the fixed version for 5.7.x) and before 5.8.0 allow remote attackers to conduct clickjacking attacks via framing various resources that lacked clickjacking protection.

Published: 2018-02-15 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-18088 is rated Low Risk (38.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.05%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-18088

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.21% 1.05% +0.84%
2 2025-03-17 0.14% 0.21% +0.07%
3 2023-03-07 — 0.14% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-18088

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 1.4 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-18088

Affected software / configurations for CVE-2017-18088

Vendor Product Version Raw CPE
atlassian bitbucket >= 5.3.0, < 5.3.7 cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*
atlassian bitbucket >= 5.4.0, < 5.4.6 cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*
atlassian bitbucket >= 5.5.0, < 5.5.6 cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*
atlassian bitbucket >= 5.6.0, < 5.6.3 cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*
atlassian bitbucket >= 5.7.0, < 5.7.1 cpe:2.3:a:atlassian:bitbucket:*:*:*:*:*:*:*:*

References for CVE-2017-18088

URL Tags
http://www.securityfocus.com/bid/103040 Third Party Advisory VDB Entry
https://jira.atlassian.com/browse/BSERV-10594 Vendor Advisory
cvelogic Threat Intelligence