CVE-2021-39271
HighPublic PoC
Published: 30 August 2021
Published
30 August 2021
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.0398
88.7th percentile
Risk Priority
20
60% EPSS · 20% KEV · 20% CVSS
Summary
CVE-2021-39271 is a high-severity an unspecified weakness vulnerability in Bscw Bscw Classic. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 11.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2021-25633
Vulnerability details
OrbiTeam BSCW Classic before 7.4.3 allows authenticated remote code execution (RCE) during archive extraction via attacker-supplied Python code in the class attribute of a .bscw file. This is fixed in 5.0.12, 5.1.10, 5.2.4, 7.3.3, and 7.4.3.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
bscw
bscw classic
≤ 5.0.12 · 5.1.0 — 5.1.10 · 5.2.0 — 5.2.4
Mitigating Controls
No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.