5.3

CVE-2019-8449: atlassian jira

Modified
Published 11-09-2019Last modified 17-09-2024

Vulnerability summary

CVE-2019-8449 is a medium (CVSS 5.3) vulnerability in atlassian jira. EPSS estimates a 84.77% chance of exploitation in the next 30 days, higher than 99.7% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
84.77%
0%100%
Critical · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Timeline

  1. 11-09-2019
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

The /rest/api/latest/groupuserpicker resource in Jira before version 8.4.0 allows remote attackers to enumerate usernames via an information disclosure vulnerability.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

84.77%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

No change 0.00 pp

From 84.77% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (packetstormsecurity.com)

    Maturity: unknown

  • exploit-databasejavaUnverified

    Jira 8.3.4 - Information Disclosure (Username Enumeration)

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian1 product
  • jira≥ unspecified, < 8.4.0 | < 8.4.0

1 vendor · 1 product

References

2 links