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| Vulnerability ID | VCID-eewc-shba-ducc |
| Aliases |
CVE-2021-43257
GHSA-rg8f-5p7x-m6wv |
| Summary | MantisBT CSV Injection unprivileged user access in csv_export.php 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. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 8.0 |
| Risk | 4.0 |
| Affected and Fixed Packages | Package Details |
| System | Score | Found at |
|---|---|---|
| epss | 0.00724 | https://api.first.org/data/v1/epss?cve=CVE-2021-43257 |
| cvssv3.1_qr | HIGH | https://github.com/advisories/GHSA-rg8f-5p7x-m6wv |
| cvssv3.1 | 7.8 | https://github.com/mantisbt/mantisbt |
| generic_textual | HIGH | https://github.com/mantisbt/mantisbt |
| cvssv3.1 | 7.8 | https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e |
| generic_textual | HIGH | https://github.com/mantisbt/mantisbt/commit/7f4534c723e3162b8784aebda4836324041dbc3e |
| cvssv3.1 | 7.8 | https://github.com/mantisbt/mantisbt/commit/99eb8d41cbacc703f88807898dcc9ac55eec0f15 |
| generic_textual | HIGH | https://github.com/mantisbt/mantisbt/commit/99eb8d41cbacc703f88807898dcc9ac55eec0f15 |
| cvssv3.1 | 7.8 | https://nvd.nist.gov/vuln/detail/CVE-2021-43257 |
| generic_textual | HIGH | https://nvd.nist.gov/vuln/detail/CVE-2021-43257 |
| cvssv3.1 | 7.8 | https://www.mantisbt.org/bugs/view.php?id=29130 |
| generic_textual | HIGH | https://www.mantisbt.org/bugs/view.php?id=29130 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.72869 |
| EPSS Score | 0.00724 |
| Published At | May 30, 2026, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2026-05-30T20:57:39.019601+00:00 | GitLab Importer | Import | https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/mantisbt/mantisbt/CVE-2021-43257.yml | 38.6.0 |