What’s Vulnerable › Vulnerabilities

CVE-2021-43257

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-04-14 · updated 2026-06-17
• Weakness: CWE-1236

Description

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.

Affected products

• mantisbt: before 2.25.3 — fixed in 2.25.3

How to fix

Upgrade to a fixed version: mantisbt 2.25.3. Check the vendor advisory for mitigations.

References

• https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e
• https://www.mantisbt.org/bugs/view.php?id=29130
• https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e
• https://www.mantisbt.org/bugs/view.php?id=29130

Get alerted when CVE-2021-43257 or the next vulnerability affects your stack