CVE-2021-43940: atlassian confluence_data_center Uncontrolled Search Path Element
Vulnerability summary
CVE-2021-43940 is a high (CVSS 7.8) Uncontrolled Search Path Element vulnerability in atlassian confluence_data_center. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 26.1% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Timeline
- 15-02-2022PublishedVulnerability first disclosed.
- 08-10-2024Last modifiedVulnerability information updated.
Description
Affected versions of Atlassian Confluence Server and Data Center allow authenticated local attackers to achieve elevated privileges on the local system via a DLL Hijacking vulnerability in the Confluence installer. This vulnerability only affects installations of Confluence Server and Data Center on Windows. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
26%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.33% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.
Atlassian2 products
- confluence_data_center≥ unspecified, < 7.4.10 | ≥ 7.5.0, < unspecified | ≥ unspecified, < 7.12.3 | < 7.4.10 | ≥ 7.5.0, < 7.12.3
- confluence_server≥ unspecified, < 7.4.10 | ≥ 7.5.0, < unspecified | ≥ unspecified, < 7.12.3 | < 7.4.10 | ≥ 7.5.0, < 7.12.3
1 vendor · 2 products