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CVE-2016-5291

A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird <…

Medium5.5EPSS 0.43%
Published
Updated
Reserved
Assigned by
mozilla

Description

A same-origin policy bypass with local shortcut files to load arbitrary local content from disk. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50.

Scores

CVSS scores of CVE-2016-5291, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.0Medium5.5CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS (exploitation in 30 days)
0.43% · top 62% of all CVEs (2 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Mozilla · Thunderbird

    • affected unspecified – < 45.5

  • Mozilla · Firefox ESR

    • affected unspecified – < 45.5

  • Mozilla · Firefox

    • affected unspecified – < 50

References (9)

Sources

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

Record last updated .