CVE-2018-13393 — The convertCommentToAnswer resource in Atlassian Confluence Questions before version 2.6.6, the bundled version of Confluence Questions was updated to a fixed version in Confluence version 6.9.0, allows remote attackers to modify a comment into an answer via a Cross-site request forgery (CSRF) vulnerability

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MEDIUM

The convertCommentToAnswer resource in Atlassian Confluence Questions before version 2.6.6, the bundled version of Confluence Questions was updated to a fixed version in Confluence version 6.9.0, allows remote attackers to modify a comment into an answer via a Cross-site request forgery (CSRF) vulnerability

Published Aug 15, 2018

6.5

MEDIUM

CVSS 3.0

EPSS 0.80%

Description

The convertCommentToAnswer resource in Atlassian Confluence Questions before version 2.6.6, the bundled version of Confluence Questions was updated to a fixed version in Confluence version 6.9.0, allows remote attackers to modify a comment into an answer via a Cross-site request forgery (CSRF) vulnerability.

Affected products

Vendor Atlassian Product Confluence Questions Default
n/a
- Version
  unspecified
  Status
  affected
  Constraints
  <2.6.6

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

Confluence Questions

n/a

Version	Status	Constraints
unspecified	affected	<2.6.6

Remediation

No remediation recorded yet.

Metrics

0.80% 0.00800

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00800

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 (8 key points)

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

Date	Score	Percentile	Model
Oct 1, 2026	0.80% (0.00800)	54.98th	v5 (v2026.06.15)
Sep 20, 2026	0.80% (0.00800)	55.03th	v5 (v2026.06.15)
Jul 20, 2024	0.07% (0.00067)	29.99th	v3 (v2023.03.01)
Mar 7, 2023	0.07% (0.00070)	28.38th	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-352

CSRF

References (2)

http://www.securityfocus.com/bid/105155
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/CONFSERVER-56282
x_refsource_CONFIRMIssue TrackingVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/105155		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
https://jira.atlassian.com/browse/CONFSERVER-56282		x_refsource_CONFIRMIssue TrackingVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner atlassian

Published Aug 15, 2018

Updated Sep 16, 2024

Reserved Jul 6, 2018

Link CVE-2018-13393

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-13393

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-13393