CVE-2022-22744: mozilla firefox Improper Encoding or Escaping of Output
Vulnerability summary
CVE-2022-22744 is a high (CVSS 8.8) Improper Encoding or Escaping of Output vulnerability in mozilla firefox. EPSS estimates a 1.38% chance of exploitation in the next 30 days, higher than 71.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 10 · Related 10Timeline
- 22-12-2022PublishedVulnerability first disclosed.
- 16-04-2025Last modifiedVulnerability information updated.
Description
The constructed curl command from the "Copy as curl" feature in DevTools was not properly escaped for PowerShell. This could have lead to command injection if pasted into a Powershell prompt.<br>*This bug only affects Thunderbird for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
CVSS metrics
3 scores · 3 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
- NVDNIST8.8HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.38%
Chance of exploitation in the next 30 days
Percentile
72%
Versus all other CVEs
30-day change
+0.04 pp
From 1.34% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- mozjs38All versions (No fix recorded)
- mozjs52All versions (No fix recorded)
- mozjs68All versions (No fix recorded)
- mozjs78All versions (No fix recorded)
Mozilla3 products
- firefox≥ unspecified, < 96 | < 96.0
- firefox_esr≥ unspecified, < 91.5 | < 91.5
- thunderbird≥ unspecified, < 91.5 | < 91.5
2 vendors · 7 products
References
7 links- www.mozilla.org/security/advisories/mfsa2022-01/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-02/Vendor Advisory
- www.mozilla.org/security/advisories/mfsa2022-03/Vendor Advisory
- bugzilla.mozilla.org/show_bug.cgi?id=1737252Issue Tracking