CVE-2022-22756: mozilla firefox Code Injection
Vulnerability summary
CVE-2022-22756 is a high (CVSS 8.8) Code Injection vulnerability in mozilla firefox. EPSS estimates a 0.93% chance of exploitation in the next 30 days, higher than 59.9% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 27 · Related 11Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.93%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.93% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.mozilla.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu6 products
- firefox< 97.0+build2-0ubuntu0.18.04.1 | < 97.0+build2-0ubuntu0.20.04.1 | < 97.0+build2-0ubuntu1
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 97 | < 97.0
- firefox_esr≥ unspecified, < 91.6 | < 91.6
- thunderbird≥ unspecified, < 91.6 | < 91.6
Debian2 products
- firefox-esr< 91.6.0esr-1
- thunderbird< 1:91.6.0-1
3 vendors · 11 products
References
11 links- www.mozilla.org/security/advisories/mfsa2022-05/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-04/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-06/Vendor Advisory
