Yourls
CVE-2021-3785
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
yourls is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
AnalysisAI
yourls is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.
Technical ContextAI
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. yourls is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Affected products include: Yourls.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
YOURLS through 1.7.3 is affected by a type juggling vulnerability in the api component that can result in login bypass.
yourls is vulnerable to Improper Restriction of Rendered UI Layers or Frames. Rated high severity (CVSS 8.8), this vulne
Cross-Site Request Forgery (CSRF) in GitHub repository yourls/yourls prior to 1.8.3. Rated high severity (CVSS 7.4), thi
Cross-site scripting (XSS) vulnerability in the administrator panel in Yourls 1.7 allows remote attackers to inject arbi
yourls is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Rated medi
Multiple Stored Cross Site Scripting (XSS) vulnerabilities exist in the YOURLS Admin Panel, Versions 1.5 - 1.7.10. Rated
Same weakness CWE-79 – Cross-site Scripting (XSS)
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External POC / Exploit Code
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