vulnwire
5.3med

CVE-2017-7791

On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over arbitrary domains following p…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
5.3
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
1.8%
percentile 79%
Public exploits
0
none known

On pages containing an iframe, the "data:" protocol can be used to create a modal alert that will render over arbitrary domains following page navigation, spoofing of the origin of the modal alert from the iframe content. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Exploit prediction (EPSS)

1.80% probability of exploitation in the next 30 days, higher than 79% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.05.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD2.05.0AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

  • Mozilla Thunderbird
  • Mozilla Firefox ESR
  • Mozilla Firefox

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • mozilla.org /security/advisories/mfsa2017-19/ · x_refsource_CONFIRM, x_transferred
  • mozilla.org /security/advisories/mfsa2017-20/ · x_refsource_CONFIRM, x_transferred
  • bugzilla.mozilla.org /show_bug.cgi?id=1365875 · x_refsource_CONFIRM, x_transferred
  • debian.org /security/2017/dsa-3968 · vendor-advisory, x_refsource_DEBIAN, x_transferred
  • mozilla.org /security/advisories/mfsa2017-18/ · x_refsource_CONFIRM, x_transferred
  • access.redhat.com /errata/RHSA-2017:2456 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • access.redhat.com /errata/RHSA-2017:2534 · vendor-advisory, x_refsource_REDHAT, x_transferred
  • securityfocus.com /bid/100240 · vdb-entry, x_refsource_BID, x_transferred
  • securitytracker.com /id/1039124 · vdb-entry, x_refsource_SECTRACK, x_transferred
  • security.gentoo.org /glsa/201803-14 · vendor-advisory, x_refsource_GENTOO, x_transferred
  • debian.org /security/2017/dsa-3928 · vendor-advisory, x_refsource_DEBIAN, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.