Nunjucks autoescape bypass leads to cross site scripting
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.4%
exploitation probability
0.4%top 72% of all CVEs
observed exploitation
nono source reports it
In Nunjucks versions prior to version 3.2.4, it was
possible to bypass the restrictions which are provided by the autoescape
functionality. If there are two user-controlled parameters on the same
line used in the views, it was possible to inject cross site scripting
payloads using the backslash \ character.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
Mozilla · Nunjucks