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Fencer Vulns
high 8.1

CVE-2022-3033 json

If a Thunderbird user replied to a crafted HTML email containing a <code>meta</code> tag, with the <code>meta</code> tag having the <code>h…

published 2022-12-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42466

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 57%
public exploits
0
none known

Summary

If a Thunderbird user replied to a crafted HTML email containing a <code>meta</code> tag, with the <code>meta</code> tag having the <code>http-equiv="refresh"</code> attribute, and the content attribute specifying an URL, then Thunderbird started a network request to that URL, regardless of the configuration to block remote content. In combination with certain other HTML elements and attributes in the email, it was possible to execute JavaScript code included in the message in the context of the message compose document. The JavaScript code was able to perform actions including, but probably not limited to, read and modify the contents of the message compose document, including the quoted original message, which could potentially contain the decrypted plaintext of encrypted data in the crafted email. The contents could then be transmitted to the network, either to the URL specified in the META refresh tag, or to a different URL, as the JavaScript code could modify the URL specified in the document. This bug doesn't affect users who have changed the default Message Body display setting to 'simple html' or 'plain text'. This vulnerability affects Thunderbird < 102.2.1 and Thunderbird < 91.13.1.

Patch / fix

  • Mozilla Thunderbird 91.13.1, 102.2.1
  • thunderbird Debian 14, Debian 13, Debian 12 1:102.2.1-1

debian advisories DEBIAN-CVE-2022-3033

  • thunderbird Ubuntu 18.04 LTS 1:102.2.2+build1-0ubuntu0.18.04.1
  • thunderbird Ubuntu 20.04 LTS 1:102.2.2+build1-0ubuntu0.20.04.1
  • thunderbird Ubuntu 22.04 LTS 1:102.2.2+build1-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-3033

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • thunderbird RHEL 7 102.3.0-3.el7_9
  • thunderbird RHEL 9 102.3.0-3.el9_0
  • thunderbird RHEL 8 102.3.0-3.el8_6
  • thunderbird RHEL 8.2 EUS 102.3.0-3.el8_2
  • thunderbird RHEL 8.1 E4S 102.3.0-3.el8_1
  • thunderbird RHEL 8.4 EUS 102.3.0-3.el8_4

red hat advisories RHSA-2022:6715RHSA-2022:6710RHSA-2022:6716RHSA-2022:6717RHSA-2022:6708RHSA-2022:6713

  • MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Workstation Extension 15 SP3, SLE Module for Package Hub 15 SP4 +3 more 102.2.2-150200.8.82.1

suse advisories SUSE-SU-2022:3281-1

  • MozillaThunderbird openSUSE Tumbleweed 102.2.1-1.1

opensuse advisories openSUSE-SU-2024:12299-1

  • thunderbird AlmaLinux 8 102.3.0-3.el8_6.alma
  • thunderbird AlmaLinux 9 102.3.0-3.el9_0.alma

almalinux advisories ALSA-2022:6708ALSA-2022:6717

  • thunderbird Rocky Linux 8 102.3.0-3.el8_6

rocky linux advisories RLSA-2022:6708

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-3033 updated cvss 7.5

Mozilla: Leaking of sensitive information when composing a response to an HTML email with a META refresh tag

  • Red Hat Enterprise Linux 6 thunderbird
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) thunderbird 102.3.0-3.el8_6
    fixed: vendor fix RHSA-2022:6708
  • Red Hat Enterprise Linux AppStream (v. 9) thunderbird 102.3.0-3.el9_0
    fixed: vendor fix RHSA-2022:6717
  • Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird 102.3.0-3.el8_1
    fixed: vendor fix RHSA-2022:6716
  • Red Hat Enterprise Linux AppStream EUS (v. 8.2) thunderbird 102.3.0-3.el8_2
    fixed: vendor fix RHSA-2022:6715
  • Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird 102.3.0-3.el8_4
    fixed: vendor fix RHSA-2022:6713
  • Red Hat Enterprise Linux Client (v. 7) thunderbird 102.3.0-3.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) thunderbird 102.3.0-3.el7_9 Red Hat Enterprise Linux Workstation (v. 7) thunderbird 102.3.0-3.el7_9
    fixed: vendor fix RHSA-2022:6710

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
18 mo ago

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 57% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

  • Mozilla Thunderbird

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.