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.
Published 2023-11-01 10:15:09
Updated 2023-11-08 20:33:19
View at NVD,   CVE.org
Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2023-1715

Exploit prediction scoring system (EPSS) score for CVE-2023-1715

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-1715

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.0
CRITICAL CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
2.3
6.0
STAR Labs SG Pte. Ltd.
5.4
MEDIUM CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.3
2.7
NIST

CWE ids for CVE-2023-1715

References for CVE-2023-1715

  • https://starlabs.sg/advisories/23/23-1715/
    (CVE-2023-1715 & CVE-2023-1716) Bitrix24 Stored Cross-Site Scripting (XSS) via Improper Input Neutralization on Invoice Edit Page | STAR Labs
    Exploit;Third Party Advisory
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