CVE-2018-12374
Plaintext of decrypted emails can leak through by user submitting an embedded form by pressing enter key within a text input field. This vulnerability affects Thunderbird < 52.9.
02 Description
Plaintext of decrypted emails can leak through by user submitting an embedded form by pressing enter key within a text input field. This vulnerability affects Thunderbird < 52.9.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.04% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 80.8% of scored records. A rank, not a probability.
- NVD base score
- 4.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-10-18 13:00Z8 YR AGO
- Last updated
- 2024-08-05 08:30Z2 YR AGO
- Reserved
- 2018-06-14
- Assigning CNA
- mozilla
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- ac67eced322b1a31f9d14d7c1ad8c289c86dce818541e47d5fd76bea6b7b1343
05 Affected products
06 References
- www.securityfocus.com104613http://www.securityfocus.com/bid/104613
- bugzilla.mozilla.orghttps://bugzilla.mozilla.org/show_bug.cgi?id=1462910
- security.gentoo.orgGLSA-201811-13https://security.gentoo.org/glsa/201811-13
- www.mozilla.orghttps://www.mozilla.org/security/advisories/mfsa2018-18/
- www.debian.orgDSA-4244https://www.debian.org/security/2018/dsa-4244
- access.redhat.comRHSA-2018:2252https://access.redhat.com/errata/RHSA-2018:2252
- lists.debian.org[debian-lts-announce] 20180714 [SECURITY] [DLA 1425-1] thunderbird security updatehttps://lists.debian.org/debian-lts-announce/2018/07/msg00013.html
- access.redhat.comRHSA-2018:2251https://access.redhat.com/errata/RHSA-2018:2251
- usn.ubuntu.comUSN-3714-1https://usn.ubuntu.com/3714-1/
07 Fixed in
Arch Linux
- thunderbird Fixed in 52.9.1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- thunderbird Fixed in 1:52.9.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- thunderbird Fixed in 1:52.9.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- thunderbird Fixed in 1:52.9.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- thunderbird Fixed in 1:52.9.1+build3-0ubuntu0.14.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- thunderbird Fixed in 1:52.9.1+build3-0ubuntu0.16.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- thunderbird Fixed in 1:52.9.1+build3-0ubuntu0.18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.