CVE-2021-35440 — Vulnerability in smashing — CVE Details
MEDIUM
Smashing Cross-site Scripting vulnerability
Published May 24, 2022Updated February 16, 2024Source: osv
Summary
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.
Advisory Timeline
- First published May 24, 2022 (1602 days ago).
- Last revised February 16, 2024 — 633 days after initial publication.
Remediation
Upgrade to the fixed version using your package manager.
Bundler
Update smashing to 1.3.5 or latergem install smashing -v 1.3.5
After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.
Affected Packages (1)
Affects 1 ecosystem: rubygems (1).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| smashing | rubygems | 1.0.0, 1.1.0, 1.2.0, 1.3.0 (+4 more) | 1.3.5 |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-79Cross-site Scripting (XSS)MITRE
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 6.1 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-35440ADVISORY
- https://github.com/Smashing/smashing/pull/186WEB
- https://github.com/Smashing/smashing/pull/186/commits/f4648137ae77aa2a9ccd14b2e6eeaed2cfb32da3WEB
- https://github.com/Smashing/smashingPACKAGE
- https://github.com/Smashing/smashing/blob/ad7325f159f89854ca4e7d94e7be9bee507b6d46/CHANGELOG.mdWEB
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/smashing/CVE-2021-35440.ymlWEB
Frequently Asked Questions
- What is CVE-2021-35440?
- Smashing Cross-site Scripting vulnerability This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.1/10).
- How do I check if my project is affected by CVE-2021-35440?
- CVE-2021-35440 affects smashing. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-35440 and 200,000+ other known vulnerabilities.
Severity & Exploitability
CVSS Score
6.1
Exploitation requires specific conditions or has limited impact. Remediate within weeks.
Also Known As
GHSA-254j-mmc5-qhpx
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