CVE-2021-39172
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 29.2%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 29.17% probability · 98th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-93
- Affected
- catchethq/catchet
- Source
- security-advisories@github.com
EPSS 29.2% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/Exploit, Third Party Advisory
- https://github.com/fiveai/Cachet/releases/tag/v2.5.1Release Notes, Third Party Advisory
- https://github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6Third Party Advisory
- https://blog.sonarsource.com/cachet-code-execution-via-laravel-configuration-injection/Exploit, Third Party Advisory
- https://github.com/fiveai/Cachet/releases/tag/v2.5.1Release Notes, Third Party Advisory
- https://github.com/fiveai/Cachet/security/advisories/GHSA-9jxw-cfrh-jxq6Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.