CVE detail
CVE-2021-38503
The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 11.0 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
2 source links · newest first
Mozilla this week announced that Firefox 94 is bringing Site Isolation to all users, along with patches for over a dozen vulnerabilities, including seven that feature a high severity rating.
newswww.securityweek.comNov 4, 2021, 3:41 PM- Update now! Mozilla fixes security vulnerabilities in Firefox 94Malwarebytes Labs
In a security advisory, Mozilla’s announced that several security issues in its Firefox browser have been fixed. Several of these vulnerabilities…
newswww.malwarebytes.comNov 2, 2021, 5:00 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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