CVE-2023-1717

Critical

Description

Prototype pollution in bitrix/templates/bitrix24/components/bitrix/menu/left_vertical/script.js in Bitrix24 22.0.300 allows remote attackers to execute arbitrary JavaScript code in the victim’s browser, and possibly execute arbitrary PHP code on the server if the victim has administrator privilege, via polluting `__proto__[tag]` and `__proto__[text]`.

SeverityCritical

CVSS9.6

Exploit probability—

Product

Bitrix24

PublishedNov 1, 2023

First seenNov 1, 2023

Weakness typeCWE-79Cross-site scripting (XSS)CWE-1321Prototype pollution

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

Product	Affected versions	Fixed in
bitrix24 bitrix24	22.0.300	—

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