THREATPORT/VULNERABILITY/CVE-2023-1718
HIGH SEVERITY

CVE-2023-1718

Bitrix24 vulnerability

CVSS
7.5
EPSS
24.1%
EPSS pct
98th
Exploited
No known
Improper file stream access in /desktop_app/file.ajax.php?action=uploadfile in Bitrix24 22.0.300 allows unauthenticated remote attackers to cause denial-of-service via a crafted "tmp_url".
Affected vendor
Bitrix24
Affected product
Bitrix24
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)
Published
2023-11-01

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 24.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 98% of all scored CVEs.

Check your external exposure to CVE-2023-1718

  • Confirm whether Bitrix24 Bitrix24 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-1718.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-1718

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-1718 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2023-1718?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2023-1718.

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