High severity8.8NVD Advisory· Published Aug 27, 2021· Updated Jun 17, 2026
CVE-2021-39172
CVE-2021-39172
Description
Cachet is an open source status page system. Prior to version 2.5.1, authenticated users, regardless of their privileges (User or Admin), can exploit a new line injection in the configuration edition feature (e.g. mail settings) and gain arbitrary code execution on the server. This issue was addressed in version 2.5.1 by improving UpdateConfigCommandHandler and preventing the use of new lines characters in new configuration values. As a workaround, only allow trusted source IP addresses to access to the administration dashboard.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
cachethq/cachetPackagist | < 2.5.1 | 2.5.1 |
Affected products
3Patches
Vulnerability mechanics
References
7- blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/nvdExploitThird Party Advisory
- github.com/advisories/GHSA-9jxw-cfrh-jxq6ghsaADVISORY
- github.com/fiveai/Cachet/releases/tag/v2.5.1nvdRelease NotesThird Party AdvisoryWEB
- github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6nvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-39172ghsaADVISORY
- blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injectionghsaWEB
- github.com/fiveai/Cachet/commit/6442976c25930cb370c65a22784b9caee7ed1de2ghsaWEB
News mentions
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