THREATPORT/VULNERABILITY/CVE-2020-13483
MEDIUM SEVERITY

CVE-2020-13483

Bitrix24 vulnerability

CVSS
6.1
EPSS
4.5%
EPSS pct
91th
Exploited
No known
The Web Application Firewall in Bitrix24 through 20.0.0 allows XSS via the items[ITEMS][ID] parameter to the components/bitrix/mobileapp.list/ajax.php/ URI.
Affected vendor
Bitrix24
Affected product
Bitrix24
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness type (CWE)
  • CWE-79 — Cross-Site Scripting (XSS)
Published
2020-06-24

Risk analysis

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

Its EPSS score of 4.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2020-13483

  • Confirm whether Bitrix24 Bitrix24 is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2020-13483.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-13483

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-13483 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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