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Vulnerabilities

Vulnerability · CVE-2025-54527

In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

Published Jul 28, 2025 · catalog updated Jul 28, 2025 · JetBrains YouTrack

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-54527. EPSS is 0.29%. Act only if a listed version of JetBrains YouTrack is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
Medium6.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.29%
Remediation
Version ranges on file
Affected products
vendor JetBrains YouTrack 0 <2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344

In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor JetBrains YouTrack 0 <2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.873440 <2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344

How to fix CVE-2025-54527

  • Upgrade

    CVE-2025-54527 lists a fix boundary at 2025.2.86935. Compare the installed build with that boundary before you change production.

  • Version check

    Seen in 0 <2025.2.86935 · 3 other packages on the advisory

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-54527. EPSS is 0.29%. Act only if a listed version of JetBrains YouTrack is installed.

Which versions are affected?

Compare what you have installed with JetBrains YouTrack 0 <2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 0 <2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.29%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 28, 2025 · EUVD

    Detected

    In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

  2. Jul 28, 2025 · EUVD

    Updated

    In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

Sources

  • CVE.orgVulnerability recordCVE-2025-54527

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-54527

    30-day exploitation probability 0.29%

    first.org
  • EUVDVulnerability recordEUVD-2025-22927

    In JetBrains YouTrack before 2025.2.86935, 2025.2.87167, 2025.3.87341, 2025.3.87344 improper iframe configuration in widget sandbox allows popups to bypass security restrictions

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 21, 2026