CVE-2022-42927: mozilla firefox Origin Validation Error
CVSS: 8.1v3.1HighModified
AliasesUBUNTU-CVE-2022-42927DEBIAN-CVE-2022-42927
Published 22-12-2022Last modified 15-04-2025
Vulnerability summary
CVE-2022-42927 is a high (CVSS 8.1) Origin Validation Error vulnerability in mozilla firefox. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.4% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.1 (CVE.org)EPSS score
0.43%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 26 · Related 9DLA-3156-1DLA-3170-1DSA-5259-1DSA-5262-1MGASA-2022-0378OPENSUSE-SU-2024:12429-1OPENSUSE-SU-2024:12439-1OPENSUSE-SU-2024:14572-1RHSA-2022:7066RHSA-2022:7068RHSA-2022:7069RHSA-2022:7070RHSA-2022:7071RHSA-2022:7072RHSA-2022:7178RHSA-2022:7181RHSA-2022:7182RHSA-2022:7183RHSA-2022:7184RHSA-2022:7190SUSE-SU-2022:3698-1SUSE-SU-2022:3719-1SUSE-SU-2022:3726-1SUSE-SU-2022:4085-1USN-5709-1USN-5724-1
Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 15-04-2025Last modifiedVulnerability information updated.
Description
A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.
CVSS metrics
4 scores · 4 sources · 1 versionHigh 8.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- NVDNIST8.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.43%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
+0.01 pp
From 0.41% on 19-09-2026
19-09-202619-10-2026
EPSS score0.43%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Mozilla3 products
- firefox≥ unspecified, < 106 | < 106.0
- firefox_esr≥ unspecified, < 102.4 | < 102.4
- thunderbird≥ unspecified, < 102.4 | < 102.4
Debian2 products
- firefox-esr< 102.4.0esr-1
- thunderbird< 1:102.4.0-1
Ubuntu2 products
- firefox< 106.0.2+build1-0ubuntu0.18.04.1 | < 106.0.2+build1-0ubuntu0.20.04.1
- thunderbird< 1:102.4.2+build2-0ubuntu0.18.04.1 | < 1:102.4.2+build2-0ubuntu0.20.04.1 | < 1:102.4.2+build2-0ubuntu0.22.04.1
3 vendors · 7 products
References
12 links- www.mozilla.org/security/advisories/mfsa2022-44/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-45/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-46/Vendor Advisory
