TI-2021-12952 Aliases CVE-2021-33558 GHSA-8rj5-wwmx-vj53

Boa 0.94.13 allows remote attackers to obtain sensitive information via a…

MEDIUM 47Published 2021-05-27 · Updated 2024-08-03

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · None · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.12307 96th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:boa:boa:0.94.13:::::::*	0.94.13	Vulnerable	Boa

cpe:2.3:a:boa:boa:0.94.13:*:*:*:*:*:*:* Versions 0.94.13 Vulnerable ·Boa

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-33558
2026-10-03 Alias added: GHSA-8rj5-wwmx-vj53

References

Exploit 1

https://github.com/mdanzaruddin/CVE-2021-33558.

Advisory 2

TI-2017-07207 /cgi-bin/wapopen in Boa 0.94.14rc21 allows the injection of "../.." using the FILECAMERA… CVSS 3.1HIGH 7.5
TI-2022-22725 Boa Web Server versions 0.94.13 through 0.94.14 fail to validate the correct security… CVSS 3.1MEDIUM 5.3
TI-2018-14989 Boa through 0.94.14rc21 allows remote attackers to trigger an out-of-memory (OOM)… CVSS 3.1CRITICAL 9.8
TI-2022-21684 Boa 0.94.14rc21 is vulnerable to SQL Injection via username. CVSS 3.1CRITICAL 9.8
TI-2018-14990 Boa through 0.94.14rc21 allows remote attackers to trigger a memory leak because of missing calls to the free function. CVSS 3.1HIGH 7.5
TI-2009-04257 Boa 0.94.14rc21 writes data to a log file without sanitizing non-printable characters… CVSS 2.0MEDIUM 5.0

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences