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CVE-2019-20100

19
FAUCET Score

CVE-2019-20100 describes a Cross-Site Request Forgery (CSRF) vulnerability in the Atlassian Application Links plugin, impacting Atlassian Jira Server and Data Center versions prior to 8.7.0, as well as specific versions of the plugin itself. This medium-severity vulnerability (CVSS 4.7) allows an attacker to enumerate internal network hosts and open ports by tricking an administrative user into executing malicious HTTP requests. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage regarding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 7.0.0, < 8.4.5CPE matchmatch criteria
cpe:2.3:a:atlassian:jira:*:*:*:*:*:*:*:*
>= 7.0.0, < 8.5.4CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
>= 8.5.5, < 8.6.2CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_data_center:*:*:*:*:*:*:*:*
>= 8.5.5, < 8.6.2CPE matchmatch criteria
cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.02%
Probability of exploitation in next 30 days
EPSS Percentile
59.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0102 is in the 72nd percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (6)

boschvendor investigatingvia llm_extracted
maxkbvendor investigatingvia llm_extracted
nxpvendor investigatingvia llm_extracted
openfirevendor investigatingvia llm_extracted
openstackvendor investigatingvia llm_extracted
opnsensevendor investigatingvia llm_extracted

Vendor Advisories (6)

maxkbllm-maxkb-a76ebc2109dc4025MEDIUM

Atlassian Jira CSRF

Feb 3, 2020
openstackllm-openstack-70217bb5f92336f4MEDIUM

Atlassian Jira CSRF

Feb 3, 2020
nxpllm-nxp-de2febb023905f5cMEDIUM

Atlassian Jira CSRF

Feb 3, 2020
boschllm-bosch-18b3aef1b762e437MEDIUM

Atlassian Jira CSRF

Feb 3, 2020
opnsensellm-opnsense-22354a1e37fc2943MEDIUM

Atlassian Jira CSRF

Feb 3, 2020
openfirellm-openfire-76622d6e0acb645fMEDIUM

Atlassian Jira CSRF

Feb 3, 2020

References

ecosystem.atlassian.net / browse/APL-1390
Vendor Advisory
jira.atlassian.com / browse/JRASERVER-70607
Issue TrackingVendor Advisory
tenable.com / security/research/tra-2020-06
ExploitThird Party Advisory