CVE-2017-18039 — The IncomingMailServers resource in Atlassian Jira from version 6.2.1 before version 7.4.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the messagesThreshold parameter

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MEDIUM

The IncomingMailServers resource in Atlassian Jira from version 6.2.1 before version 7.4.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the messagesThreshold parameter

Published Feb 2, 2018

6.1

MEDIUM

CVSS 3.0

EPSS 1.11%

Description

The IncomingMailServers resource in Atlassian Jira from version 6.2.1 before version 7.4.4 allows remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the messagesThreshold parameter.

Affected products

Vendor Atlassian Product Jira Default
n/a
- Version
  from 6.2.1 prior to 7.4.4
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Atlassian

Jira

n/a

Version	Status	Constraints
from 6.2.1 prior to 7.4.4	affected	-

Remediation

No remediation recorded yet.

Metrics

1.11% 0.01110

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.01110

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (9 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	1.11% (0.01110)	64.74th	v5 (v2026.06.15)
Sep 20, 2026	1.11% (0.01110)	64.46th	v5 (v2026.06.15)
Jul 20, 2024	0.10% (0.00096)	40.87th	v3 (v2023.03.01)
Sep 3, 2023	0.10% (0.00095)	39.34th	v3 (v2023.03.01)
Mar 7, 2023	0.11% (0.00113)	43.05th	v3 (v2023.03.01)
Mar 6, 2023	1.05% (0.01055)	52.13th	v2 (v2022.01.01)
Feb 4, 2022	1.05% (0.01055)	27.52th	v2 (v2022.01.01)
Feb 3, 2022	0.78% (0.00785)	22.12th	v5 (v2026.06.15)
Apr 14, 2021	0.78% (0.00785)	0.00th	v1

Weaknesses (1)

CWE-79

Cross-site Scripting (XSS)

References (2)

http://www.securityfocus.com/bid/103086
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/JRASERVER-66719
x_refsource_CONFIRMIssue TrackingVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/103086		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/JRASERVER-66719		x_refsource_CONFIRMIssue TrackingVendor Advisory