CVE-2018-5185

MEDIUM 6.5CVE-2018-5185 · Published 11/06/2018 · updated 17/06/2026

In short

CVE-2018-5185 is a MEDIUM (CVSS 6.5) vulnerability affecting thunderbird (mozilla), thunderbird esr (mozilla).
Chance of exploitation in the next 30 days (EPSS): 1.5%, higher than 74.4% of all vulnerabilities.
Fix: update to 52.8.0 or later.

Package	Affected versions	Patched versions
thunderbird mozilla	`< 52.8.0`	`52.8.0`
thunderbird esr mozilla	`< 52.8.0`	`52.8.0`

Description

Plaintext of decrypted emails can leak through by user submitting an embedded form. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

References

securityfocus.com/bid/104240 · Third Party Advisory
securitytracker.com/id/1040946 · Third Party Advisory
access.redhat.com/errata/RHSA-2018:1725 · Third Party Advisory
access.redhat.com/errata/RHSA-2018:1726 · Third Party Advisory
bugzilla.mozilla.org/show_bug.cgi · Issue Tracking
lists.debian.org/debian-lts-announce/2018/05/msg00013.html · Mailing List
security.gentoo.org/glsa/201811-13 · Third Party Advisory
usn.ubuntu.com/3660-1 · Third Party Advisory
debian.org/security/2018/dsa-4209 · Third Party Advisory
mozilla.org/security/advisories/mfsa2018-13 · Vendor Advisory

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Package

Affected versions

Patched versions

thunderbird

mozilla

< 52.8.0

52.8.0

thunderbird esr

mozilla

< 52.8.0

52.8.0

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