CVE-2018-5185

MEDIUMNVD 6.56.5—Trending — 4 sources updated this week

6.5

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

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 56.1%
KEV: Not listed

Published

June 11, 2018

Last Modified

November 21, 2024

References (20)

security@mozillahttp://www.securityfocus.com/bid/104240
security@mozillahttp://www.securitytracker.com/id/1040946
security@mozillahttps://access.redhat.com/errata/RHSA-2018:1725
security@mozillahttps://access.redhat.com/errata/RHSA-2018:1726
security@mozillahttps://bugzilla.mozilla.org/show_bug.cgi?id=1450345
security@mozillahttps://lists.debian.org/debian-lts-announce/2018/05/msg00013.html
security@mozillahttps://security.gentoo.org/glsa/201811-13
security@mozillahttps://usn.ubuntu.com/3660-1/
security@mozillahttps://www.debian.org/security/2018/dsa-4209
security@mozillahttps://www.mozilla.org/security/advisories/mfsa2018-13/
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/104240
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040946
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1725
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:1726
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.mozilla.org/show_bug.cgi?id=1450345

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	xul-ext-lightning (1:52.8.0+build1-0ubuntu0.16.04.1) @ xenial	2026-05-28	ubuntu
redhat	thunderbird-0:52.8.0-1.el7_5	2018-05-24	redhat
redhat	thunderbird-0:52.8.0-2.el6_9	2018-05-24	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-311Missing Encryption of Sensitive Data

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 17× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-31 00:14 UTCepss_batch
2026-05-29 13:41 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 06:45 UTCEG score recompute
2026-05-28 06:45 UTCVendor advisory
2026-05-28 06:45 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2018-5185?

CVE-2018-5185 is a medium vulnerability published on June 11, 2018. Plaintext of decrypted emails can leak through by user submitting an embedded form. This vulnerability affects Thunderbird ESR < 52.8 and Thunderbird < 52.8.

When was CVE-2018-5185 disclosed?

CVE-2018-5185 was first published in the National Vulnerability Database on June 11, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2018-5185 actively exploited?

CVE-2018-5185 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 56.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2018-5185?

CVE-2018-5185 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2018-5185?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-5185, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2018-5185

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CVE-2018-5185

Published

Last Modified

References (20)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5185?

Same vendor

Same CWE

CVE-2018-5185

📅 Published

🔄 Last Modified

🔗 References (20)

Patch Availability(3)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2018-5185?

🔗 Related CVEs(same vendor + same CWE)

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References (20)

Frequently asked(5)

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