CVE-2026-71213: Brute Force (CVSS 9.1)

Description

Typemill's login endpoint (POST /tm/login, ControllerWebAuth::login()) performs no rate-limiting, failed-attempt counting, or account lockout when captcha is disabled, which is the default configuration. An unauthenticated attacker can send unlimited password-guessing requests against any account, including administrators, with no throttling. The only attempt-counting/lockout logic present in the same file protects an optional secondary email-authcode step and does not apply to the primary password check.

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CVSS v3.1 Score

9.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploit Prediction

0.0036

Probability of exploitation

0.29%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-307 CWE-307

References

Other References

https://github.com/typemill/typemill

Frequently Asked Questions

What is CVE-2026-71213? +

Typemill's login endpoint (POST /tm/login, ControllerWebAuth::login()) performs no rate-limiting, failed-attempt counting, or account lockout when captcha is disabled, which is the default configuration. An unauthenticated attacker can send unlimited password-guessing requests against any account, including administrators, with no throttling. The only attempt-counting/lockout logic present in the same file protects an optional secondary email-authcode step and does not apply to the primary password check. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2026-71213? +

CVE-2026-71213 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately. The EPSS score is 0.0036, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-71213? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-71213