CVE-2017-7788

Name: CVE-2017-7788
Creator: NVD / NIST
Published: 2018-06-11T21:29:09.28+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.34%

Last modified Jun 17, 2026

CVE-2017-7788 is a vulnerability of currently unknown severity. When an "iframe" has a "sandbox" attribute and its content is specified using "srcdoc", that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included "allow-same-origin". This vulnerability affects Firefox < 55.. EPSS estimates a 2.34% chance of exploitation in the next 30 days.

Description

When an "iframe" has a "sandbox" attribute and its content is specified using "srcdoc", that content does not inherit the containing page's Content Security Policy (CSP) as it should unless the sandbox attribute included "allow-same-origin". This vulnerability affects Firefox < 55.

Metrics

EPSS Probability

2.34%

81.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-74

Affected Software

Vendor	Product	Versions
Mozilla	Firefox	< 55.0

References

http://www.securityfocus.com/bid/100379Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1073952Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
http://www.securityfocus.com/bid/100379Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1073952Exploit, Issue Tracking, Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory

Timeline

Published: Jun 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-7788?

How severe is CVE-2017-7788?

Severity scoring for CVE-2017-7788 is pending analysis. The EPSS model estimates a 2.34% probability of exploitation in the next 30 days.

How do I fix CVE-2017-7788?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-7788?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST