CVE-2021-23803

Public Exploit
Access Control Bypass

Description

This affects the package latte/latte before 2.10.6. There is a way to bypass allowFunctions that will affect the security of the application. When the template is set to allow/disallow the use of certain functions, adding control characters (x00-x08) after the function will bypass these restrictions.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.39%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a latte/latte
Published at:
Updated at:

References

Link Tags
https://snyk.io/vuln/SNYK-PHP-LATTELATTE-1932226 exploit third party advisory patch
https://github.com/nette/latte/issues/279 issue tracking patch exploit third party advisory
https://github.com/nette/latte/commit/227c86eda9a8a6d060ea8501923e768b6d992210 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-23803?
CVE-2021-23803 has been scored as a critical severity vulnerability.
How to fix CVE-2021-23803?
To fix CVE-2021-23803, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-23803 being actively exploited in the wild?
It is possible that CVE-2021-23803 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23803?
CVE-2021-23803 affects n/a latte/latte.
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