7.8

CVE-2020-36233: atlassian bitbucket Incorrect Default Permissions

Modified
Published 18-02-2021Last modified 16-09-2024

Vulnerability summary

CVE-2020-36233 is a high (CVSS 7.8) Incorrect Default Permissions vulnerability in atlassian bitbucket. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.27%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 18-02-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

The Microsoft Windows Installer for Atlassian Bitbucket Server and Data Center before version 6.10.9, 7.x before 7.6.4, and from version 7.7.0 before 7.10.1 allows local attackers to escalate privileges because of weak permissions on the installation directory.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.27% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Atlassian3 products
  • bitbucket< 6.10.9 | ≥ 7.0.0, < 7.6.4 | ≥ 7.7.0, < 7.10.1
  • bitbucket_data_center≥ unspecified, < 6.10.9 | ≥ 7.0.0, < unspecified | ≥ unspecified, < 7.6.4 | ≥ 7.7.0, < unspecified | ≥ unspecified, < 7.10.1
  • bitbucket_server≥ unspecified, < 6.10.9 | ≥ 7.0.0, < unspecified | ≥ unspecified, < 7.6.4 | ≥ 7.7.0, < unspecified | ≥ unspecified, < 7.10.1

1 vendor · 3 products

References

2 links