CVE-2025-5263

May 28, 2025, 3:01 p.m.

4.3
Medium

Description

Error handling for script execution was incorrectly isolated from web content, which could have allowed cross-origin leak attacks. This vulnerability affects Firefox < 139, Firefox ESR < 115.24, and Firefox ESR < 128.11.

Product(s) Impacted

Vendor Product Versions
Mozilla
  • Firefox
  • <139, 115.23, 127.*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-346
Origin Validation Error
The product does not properly verify that the source of data or communication is valid.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a mozilla firefox <139 / / / / / / /
a mozilla firefox 115.23 / / / / / / /
a mozilla firefox 127.* / / / / / / /

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1960745
https://www.mozilla.org/security/advisories/mfsa2025-42/
https://www.mozilla.org/security/advisories/mfsa2025-43/
https://www.mozilla.org/security/advisories/mfsa2025-44/

Tags

CWE-346
security@mozilla.org
2025-05-27
CVE-2025-5263

CVSS Score

4.3 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: LOW
  • Integrity Impact: NONE
  • Availability Impact: NONE

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

    View Vector String

Timeline

Published: May 27, 2025, 1:15 p.m.
Last Modified: May 28, 2025, 3:01 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@mozilla.org

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.