CVE-2021-35440

MEDIUM

smashing < 1.3.5 - Cross-Site Scripting via Widget URL

Title source: llm
STIX 2.1

Description

Smashing 1.3.4 is vulnerable to Cross Site Scripting (XSS). A URL for a widget can be crafted and used to execute JavaScript on the victim's computer. The JavaScript code can then steal data available in the session/cookies depending on the user environment (e.g. if re-using internal URL's for deploying, or cookies that are very permissive) private information may be retrieved by the attacker.

References (3)

Core 3
Core References
Patch, Third Party Advisory x_refsource_misc
https://github.com/Smashing/smashing/pull/186
Patch, Third Party Advisory x_refsource_misc
https://github.com/Smashing/smashing/pull/186#issuecomment-871727614

Scores

CVSS v3 6.1
EPSS 0.0033
EPSS Percentile 55.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Details

CWE
CWE-79
Status published
Products (2)
rubygems/smashing 0 - 1.3.5RubyGems
smashing_project/smashing 1.3.4
Published Jul 06, 2021
Tracked Since Feb 18, 2026