HIGH
CVE-2024-26283
CWE-83Published: February 22, 2024· Updated: Jun 17, 2026
7.8
CVSS v3.1
Official Description
An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme. This vulnerability affects Firefox for iOS < 123.
Technical Analysis
CVE-2024-26283 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Vendors & Products
Mozilla1 product(s)
firefox
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
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PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories
All References (4)
→
https://bugzilla.mozilla.org/show_bug.cgi?id=1850158Issue Tracking
→
https://www.mozilla.org/security/advisories/mfsa2024-08/Vendor Advisory
→
https://bugzilla.mozilla.org/show_bug.cgi?id=1850158Issue Tracking
→
https://www.mozilla.org/security/advisories/mfsa2024-08/Vendor Advisory
Quick Facts
CVE IDCVE-2024-26283
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-83
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 22, 2024
Related CVEs (CWE-83)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2024-26283 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.