A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.
Published 2019-02-28 18:29:02
Updated 2019-03-01 14:40:24
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2018-18499

0.20%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 56 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-18499

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
MEDIUM AV:N/AC:M/Au:N/C:P/I:N/A:N
8.6
2.9
NIST
6.5
MEDIUM CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
2.8
3.6
NIST

CWE ids for CVE-2018-18499

  • The product does not properly verify that the source of data or communication is valid.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-18499

Products affected by CVE-2018-18499

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