Cyber Resilience

CVE-2021-43257

HighPublic PoC

Published: 14 April 2022

Published
14 April 2022
Modified
21 November 2024
KEV Added
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Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0072 73.0th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-43257 is a high-severity Improper Neutralization of Formula Elements in a CSV File (CWE-1236) vulnerability in Mantisbt Mantisbt. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 27.0% 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

Vulnerability details

Lack of Neutralization of Formula Elements in the CSV API of MantisBT before 2.25.3 allows an unprivileged attacker to execute code or gain access to information when a user opens the csv_export.php generated CSV file in Excel.

CWE(s)
CWE-1236

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

mantisbt
mantisbt
≤ 2.25.3

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References