If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed over the currently…

Description

If an HTTP authentication prompt is triggered by a background network request from a page or extension, it is displayed over the currently loaded foreground page. Although the prompt contains the real domain making the request, this can result in user confusion about the originating site of the authentication request and may cause users to mistakenly send private credential information to a third party site. This vulnerability affects Firefox < 58.

Scores

EPSS (exploitation in 30 days)

2.4% · top 16% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

• Background network requests can open HTTP authentication in unrelated foreground tabs
• CWE-200 (opens in a new tab)All about CWE-200 and its CVEs

Affected products

• Mozilla · Firefox

  • affected unspecified – < 58

References (5)

• 1040270 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=1409449 (opens in a new tab)x_refsource_CONFIRMx_transferred
• USN-3544-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 102786 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• https://www.mozilla.org/security/advisories/mfsa2018-02/ (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2018-5115](https://trackcve.app/badge/CVE-2018-5115.svg)](https://trackcve.app/cve/CVE-2018-5115)

Record last updated 5 Aug 2024, 05:26 UTC.