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CVE-2020-4024

20
FAUCET Score

CVE-2020-4024 is a Cross-Site Scripting (XSS) vulnerability affecting Atlassian Jira Server and Data Center versions before 8.5.5, between 8.6.0 and 8.8.2, and between 8.9.0 and 8.9.1. This flaw allows remote attackers to inject arbitrary HTML or JavaScript into attachment download resources by exploiting issue attachments with a vnd.wap.xhtml+xml content type. Rated as Medium severity with a CVSS score of 5.4, successful exploitation requires user interaction and low privileges, potentially leading to limited impact on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 8.5.5CPE matchmatch criteria
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
>= 8.6.0, < 8.8.2CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
>= 8.9.0, < 8.9.1CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
>= 8.6.0, < 8.8.2CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
>= 8.9.0, < 8.9.1CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 91st percentile among its peer group of 15,239 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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/JRASERVER-71113
Vendor Advisory