CVE-2018-13400 — Several administrative resources in Atlassian Jira before version 7.6.9, from version 7.7.0 before version 7.7.5, from version 7.8.0 before version 7.8.5, from version 7.9.0 before version 7.9.3, from version 7.10.0 before version 7.10.3, from version 7.11.0 before version 7.11.3, from version 7.12.0 before version 7.12.3, and before version 7.13.1 allow remote attackers who have obtained access to administrator's session to access certain administrative resources without needing to re-authenticate to pass "WebSudo" through an improper access control vulnerability

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MEDIUM

Several administrative resources in Atlassian Jira before version 7.6.9, from version 7.7.0 before version 7.7.5, from version 7.8.0 before version 7.8.5, from version 7.9.0 before version 7.9.3, from version 7.10.0 before version 7.10.3, from version 7.11.0 before version 7.11.3, from version 7.12.0 before version 7.12.3, and before version 7.13.1 allow remote attackers who have obtained access to administrator's session to access certain administrative resources without needing to re-authenticate to pass "WebSudo" through an improper access control vulnerability

Published Oct 23, 2018

4.7

MEDIUM

CVSS 3.0

EPSS 1.44%

Description

Several administrative resources in Atlassian Jira before version 7.6.9, from version 7.7.0 before version 7.7.5, from version 7.8.0 before version 7.8.5, from version 7.9.0 before version 7.9.3, from version 7.10.0 before version 7.10.3, from version 7.11.0 before version 7.11.3, from version 7.12.0 before version 7.12.3, and before version 7.13.1 allow remote attackers who have obtained access to administrator's session to access certain administrative resources without needing to re-authenticate to pass "WebSudo" through an improper access control vulnerability.

Affected products

Vendor Atlassian Product Jira Default
n/a
- Version
  7.10.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.11.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.12.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.13.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.7.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.8.0
  Status
  affected
  Constraints
  <unspecified
- Version
  7.9.0
  Status
  affected
  Constraints
  <unspecified
- Version
  unspecified
  Status
  affected
  Constraints
  <7.10.3
- Version
  unspecified
  Status
  affected
  Constraints
  <7.11.3
- Version
  unspecified
  Status
  affected
  Constraints
  <7.12.3
- Version
  unspecified
  Status
  affected
  Constraints
  <7.13.1
- Version
  unspecified
  Status
  affected
  Constraints
  <7.6.9
- Version
  unspecified
  Status
  affected
  Constraints
  <7.7.5
- Version
  unspecified
  Status
  affected
  Constraints
  <7.8.5
- Version
  unspecified
  Status
  affected
  Constraints
  <7.9.3

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
7.10.0	affected	<unspecified
7.11.0	affected	<unspecified
7.12.0	affected	<unspecified
7.13.0	affected	<unspecified
7.7.0	affected	<unspecified
7.8.0	affected	<unspecified
7.9.0	affected	<unspecified
unspecified	affected	<7.10.3
unspecified	affected	<7.11.3
unspecified	affected	<7.12.3
unspecified	affected	<7.13.1
unspecified	affected	<7.6.9
unspecified	affected	<7.7.5
unspecified	affected	<7.8.5
unspecified	affected	<7.9.3

Remediation

No remediation recorded yet.

Metrics

1.44% 0.01436

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.01436

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 3, 2026	1.44% (0.01436)	72.22th	v5 (v2026.06.15)
Aug 23, 2026	2.16% (0.02160)	80.58th	v5 (v2026.06.15)
Jul 20, 2024	0.11% (0.00109)	44.54th	v3 (v2023.03.01)
Jun 20, 2024	0.11% (0.00109)	44.31th	v3 (v2023.03.01)
Mar 7, 2023	0.11% (0.00109)	42.30th	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	0.83% (0.00833)	24.94th	v5 (v2026.06.15)
Apr 14, 2021	0.83% (0.00833)	0.00th	v1

Weaknesses (1)

CWE-269

Improper Privilege Management

References (2)

http://www.securityfocus.com/bid/105751
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/JRASERVER-68138
x_refsource_CONFIRMIssue TrackingVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/105751		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/JRASERVER-68138		x_refsource_CONFIRMIssue TrackingVendor Advisory