What is CVE-2021-33558?

CVE-2021-33558 is a high-severity vulnerability in Boa. CVSS score: 7.5/10. Published 2021-05-27.

How severe is CVE-2021-33558?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2021-33558 known to be exploited?

14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Boa

CVE-2021-33558

Boa 0.94.13 allows remote attackers to obtain sensitive information via a misconfiguration involving backup.html, preview.html, js/log.js, log.html, email.html, online-users.html, and config.js. NOTE: multiple third parties report that this is a site-specific issue because those files are not part of Boa.

EPSS: 0.123 (95.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Boa — versions 0.94.13
N/a — versions n/a

Public proof-of-concept exploits

References

cve@mitre.org (Third Party Advisory, Release Notes)
cve@mitre.org (Exploit, Third Party Advisory)
cve@mitre.org (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2021-33558?: CVE-2021-33558 is a high-severity vulnerability in Boa. CVSS score: 7.5/10. Published 2021-05-27.
How severe is CVE-2021-33558?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2021-33558 known to be exploited?: 14 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.