CVE-2020-13758 : modules/security/classes/general.post_filter.php/post_filter.php in the Web Application Firewall in Bitrix24 through 20.

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.

Published 2020-06-01 19:15:10

Updated 2020-06-02 13:52:04

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Exploit prediction scoring system (EPSS) score for CVE-2020-13758

EPSS FAQ

0.09%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 36 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2020-13758

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2020-13758

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

Products affected by CVE-2020-13758

Bitrix » Bitrix24
Versions up to, including, (<=) 20.0.950
cpe:2.3:a:bitrix:bitrix24:*:*:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2020-13758

Exploit prediction scoring system (EPSS) score for CVE-2020-13758

CVSS scores for CVE-2020-13758

CWE ids for CVE-2020-13758

References for CVE-2020-13758

Products affected by CVE-2020-13758