CVE-2020-13758

Public Exploit

Description

modules/security/classes/general.post_filter.php/post_filter.php in the Web Application Firewall in Bitrix24 through 20.0.950 allows XSS by placing %00 before the payload.

Category

6.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.14%
Third-Party Advisory deteact.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://blog.deteact.com/bitrix-waf-bypass/ third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-13758?
CVE-2020-13758 has been scored as a medium severity vulnerability.
How to fix CVE-2020-13758?
To fix CVE-2020-13758, 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-2020-13758 being actively exploited in the wild?
It is possible that CVE-2020-13758 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.
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