CVE-2022-31738: mozilla firefox Authentication Bypass by Spoofing
CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2022-31738DEBIAN-CVE-2022-31738
Published 22-12-2022Last modified 16-04-2025
Vulnerability summary
CVE-2022-31738 is a medium (CVSS 6.5) Authentication Bypass by Spoofing vulnerability in mozilla firefox. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 47.7% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)EPSS score
0.60%
0%100%
Low · +0.02 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 27 · Related 9DLA-3040-1DLA-3041-1DSA-5156-1DSA-5158-1MGASA-2022-0220MGASA-2022-0221OPENSUSE-SU-2024:12117-1OPENSUSE-SU-2024:12121-1OPENSUSE-SU-2024:14572-1RHSA-2022:4870RHSA-2022:4871RHSA-2022:4872RHSA-2022:4873RHSA-2022:4875RHSA-2022:4876RHSA-2022:4887RHSA-2022:4888RHSA-2022:4889RHSA-2022:4890RHSA-2022:4891RHSA-2022:4892SUSE-SU-2022:1920-1SUSE-SU-2022:1921-1SUSE-SU-2022:1927-1SUSE-SU-2022:2062-1USN-5475-1USN-5512-1
Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 6.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.60%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
+0.02 pp
From 0.58% on 19-09-2026
19-09-202619-10-2026
EPSS score0.60%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu7 products
- firefox< 101.0.1+build1-0ubuntu0.18.04.1 | < 101.0.1+build1-0ubuntu0.20.04.1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 101 | < 101
- firefox_esr≥ unspecified, < 91.10 | < 91.10
- thunderbird≥ unspecified, < 91.10 | < 91.10
Debian2 products
- firefox-esr< 91.10.0esr-1
- thunderbird< 1:91.10.0-1
3 vendors · 12 products
References
12 links- www.mozilla.org/security/advisories/mfsa2022-20/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-22/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-21/Vendor Advisory
