9.8

CVE-2022-43781: atlassian bitbucket

Modified
Published 17-11-2022Last modified 02-10-2024

Vulnerability summary

CVE-2022-43781 is a critical (CVSS 9.8) vulnerability in atlassian bitbucket. EPSS estimates a 98.04% chance of exploitation in the next 30 days, higher than 99.9% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritiseweaponized exploit

Weaponized exploit (Metasploit, 16-11-2022)

Source freshness unavailable

How is this decided?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
98.04%
0%100%
Critical · -0.04 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1metasploit

Timeline

  1. 17-11-2022
    PublishedVulnerability first disclosed.
  2. 02-10-2024
    Last modifiedVulnerability information updated.

Description

There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

98.04%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

Decrease -0.04 pp

From 98.08% 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

1 found
  • MetasploitMetasploitremoteVerified

    Bitbucket Environment Variable RCE

    exploit/multi/http/bitbucket_env_var_rce

    Maturity: weaponized

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.

Atlassian3 products
  • bitbucket≥ 7.0.0, < 7.6.19 | ≥ 7.7.0, < 7.17.12 | ≥ 7.18.0, < 7.21.6 | ≥ 7.22.0, < 8.0.5 | ≥ 8.1.0, < 8.1.5 | ≥ 8.2.0, < 8.2.4 | ≥ 8.3.0, < 8.3.3 | ≥ 8.4.0, < 8.4.2
  • bitbucket_data_center< 7.17.12 | < 7.21.6 | < 7.6.19 | < 8.0.5 | < 8.1.5 | < 8.2.4 | < 8.3.3 | < 8.4.2 | < 8.5.0
  • bitbucket_server< 7.17.12 | < 7.21.6 | < 7.6.19 | < 8.0.5 | < 8.1.5 | < 8.2.4 | < 8.3.3 | < 8.4.2 | < 8.5.0

1 vendor · 3 products

References

2 links