CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE-2021-33038
High (7.5). EPSS 1.8% chance of exploitation in the next 30 days. Fixed in hyperkitty 1.3.5.
An issue was discovered in management/commands/hyperkitty_import.py in HyperKitty through 1.3.4. When importing a private mailing list's archives, these archives are publicly visible for the duration of the import. For example, sensitive information might be available on the web for an hour during a large migration from Mailman 2 to Mailman 3.
Severity
- EPSS
- 1.8% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
- CWE
- CWE-276
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- hyperkitty_project:hyperkitty
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-h39g-q63v-4h9p | PyPI | hyperkitty | <1.3.5 | 1.3.5 |
| PYSEC-2021-77 | PyPI | hyperkitty | <1.3.5 | 1.3.5 |
References
- https://gitlab.com/mailman/hyperkitty/-/commit/9025324597d60b2dff740e49b70b15589d6804fa
- https://gitlab.com/mailman/hyperkitty/-/issues/380
- https://techblog.wikimedia.org/2021/06/11/discovering-and-fixing-cve-2021-33038-in-mailman3/
- https://www.debian.org/security/2021/dsa-4922
- https://gitlab.com/mailman/hyperkitty/-/commit/9025324597d60b2dff740e49b70b15589d6804fa