6.5

CVE-2018-9839: mantisbt Improper Input Validation

CVSS: 6.5v3.0MediumModified
Published 06-06-2019Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-9839 is a medium (CVSS 6.5) Improper Input Validation vulnerability in mantisbt. EPSS estimates a 1.22% chance of exploitation in the next 30 days, higher than 68.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.0 (NVD)
EPSS score
1.22%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Timeline

  1. 06-06-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in MantisBT through 1.3.14, and 2.0.0. Using a crafted request on bug_report_page.php (modifying the 'm_id' parameter), any user with REPORTER access or above is able to view any private issue's details (summary, description, steps to reproduce, additional information) when cloning it. By checking the 'Copy issue notes' and 'Copy attachments' checkboxes and completing the clone operation, this data also becomes public (except private notes).

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.22%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

-0.02 pp

From 1.24% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.22%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (mantisbt.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Mantisbt1 product

1 vendor · 1 product

References

2 links