What is CVE-2023-1715?

CVE-2023-1715 is a critical-severity vulnerability in Bitrix24, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-11-01.

How severe is CVE-2023-1715?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Is CVE-2023-1715 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Bitrix24

CVE-2023-1715

A logic error when using mb_strpos() to check for potential XSS payload in Bitrix24 22.0.300 allows attackers to bypass XSS sanitisation via placing HTML tags at the begining of the payload.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (44.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H.

Affected products

Bitrix24 — versions 22.0.300, 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

20142995/nuclei-templates

References

info@starlabs.sg (Exploit, Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2023-1715?: CVE-2023-1715 is a critical-severity vulnerability in Bitrix24, classified under Cross-site Scripting. CVSS score: 9.0/10. Published 2023-11-01.
How severe is CVE-2023-1715?: Critical severity. CVSS v3 base score is 9.0 out of 10.
Is CVE-2023-1715 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.