What’s Vulnerable › Vulnerabilities

CVE-2021-35440

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-07-06 · updated 2026-06-17
• Weakness: CWE-79

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.

Affected products

• Smashing Project Smashing: 1.3.4

References

• https://github.com/Smashing/smashing/blob/ad7325f159f89854ca4e7d94e7be9bee507b6d46/CHANGELOG.md
• https://github.com/Smashing/smashing/pull/186
• https://github.com/Smashing/smashing/pull/186#issuecomment-871727614
• https://github.com/Smashing/smashing/blob/ad7325f159f89854ca4e7d94e7be9bee507b6d46/CHANGELOG.md
• https://github.com/Smashing/smashing/pull/186
• https://github.com/Smashing/smashing/pull/186#issuecomment-871727614

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