Security readout for executives and security teams
This Firefox flaw could let content inside a sandboxed srcdoc iframe avoid the parent page's Content Security Policy. That weakens a browser-side safety control some sites use to limit script and content behavior. The provided sources only name Firefox versions before 55 as affected. Exposure is most likely where users still run Firefox before 55 and visit applications relying on parent-page CSP to constrain sandboxed srcdoc iframe content. No other products are identified in the source bundle. Prioritize as a legacy-browser risk. It is not supported by active exploitation evidence in the provided sources, but unsupported Firefox versions should be removed because the flaw weakens a key browser security boundary. Mitigation focus: Remove or update Firefox installations older than version 55.; Check Mozilla's MFSA2017-18 advisory for vendor guidance.; Verify managed browser policies do not permit unsupported Firefox versions..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2017-7788 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
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CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://bugzilla.mozilla.org/show_bug.cgi?id=1073952CVE reference · x_refsource_CONFIRM
- https://www.mozilla.org/security/advisories/mfsa2017-18/CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
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