VULNERABILITY INTELLIGENCE
CVE-2013-1720
CVSS score6.8 MEDIUM
EPSS probability3.99%
CISA KEVNot currently listed
Published2013-09-18
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:P
Description
The nsHtml5TreeBuilder::resetTheInsertionMode function in the HTML5 Tree Builder in Mozilla Firefox before 24.0, Thunderbird before 24.0, and SeaMonkey before 2.21 does not properly maintain the state of the insertion-mode stack for template elements, which allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer over-read) by triggering use of this stack in its empty state.
Weakness classification
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer