CVE-2025-52876

Teamcity vulnerability

CVSS

5.4

EPSS

14.5%

EPSS pct

96th

Exploited

No known

In JetBrains TeamCity before 2025.03.3 reflected XSS on the favoriteIcon page was possible

Affected vendor

Jetbrains

Affected product

Teamcity

CVSS vector

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

Weakness type (CWE)

CWE-79 — Cross-Site Scripting (XSS)

Published

2025-06-23

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, user interaction. Successful exploitation leads to low impact to confidentiality, low impact to integrity.

Its EPSS score of 14.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 96% of all scored CVEs.

Check your external exposure to CVE-2025-52876

Confirm whether Jetbrains Teamcity is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2025-52876.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-52876

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2025-52876 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-2025-52876?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2025-52876.

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