CVE-2015-4492
Mozilla: Use-after-free in XMLHttpRequest with shared workers (MFSA 2015-92)
Severity
ModerateRed Hat Product Security
CVSS 2.0
Review impact separately from score.
Published · August 11, 2015
Updated · November 21, 2025
Description
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 2.0 · 5.1AV:N/AC:H/Au:N/C:P/I:P/A:P
CWE-416 · Use After Free