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CVE-2023-1717

30
FAUCET Score

CVE-2023-1717 is a critical prototype pollution vulnerability in Bitrix24 (version 22.0.300) affecting the bitrix/templates/bitrix24/components/bitrix/menu/left_vertical/script.js component. This flaw allows remote attackers to execute arbitrary JavaScript in a victim's browser, and potentially arbitrary PHP code on the server if the victim has administrator privileges, by manipulating __proto__[tag] and __proto__[text] parameters. With a CVSS score of 9.6 (Critical), it presents a high risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 12 mentions, indicating considerable attention.

Impacted Technologies

VendorProductVersion(s)CPE
22.0.300CPE matchmatch criteria
cpe:2.3:a:bitrix24:bitrix24:22.0.300:*:*:*:*:*:*:*
>= 0, <= 22.0.300CPE match
cpe:2.3:a:bitrix24:bitrix24:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.05%
Probability of exploitation in next 30 days
EPSS Percentile
60.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0105 is in the 68th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

starlabs.sg / advisories/23/23-1717
ExploitThird Party Advisory