CVE-2021-3785: Cross-site Scripting in yourls

medium Affects yourls/yourls. Feed 2026.10.29.1, updated 2026-10-28; published 2021-09-20; advisory modified 2023-11-08.

Cross-site Scripting in yourls

Package: yourls/yourls Composer
Affected versions: <1.8.2
Fixed in: 1.8.2
Severity: medium CVSS 5.4
Exploitation: not on CISA KEV · EPSS 1% (53.8th percentile)
Published: 2021-09-20
Source: osv.dev

References

CWE-79

NVD record yourls/yourls advisories

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Related advisories

CVE-2019-14537 critical Access of Resource Using Incompatible Type ('Type Confusion') in yourls/yourls same package: yourls/yourls
CVE-2022-0088 low Cross-Site Request Forgery in YOURLS same package: yourls/yourls
CVE-2020-27388 medium YOURLS Stored Cross Site Scripting (XSS) same package: yourls/yourls
CVE-2021-3783 medium Cross-site Scripting in yourls same package: yourls/yourls
CVE-2026-62858 medium YOURLS: Unauthenticated File Inclusion same package: yourls/yourls
CVE-2026-63135 high YOURLS has stored XSS in referrer statistics chart via crafted Referer header same package: yourls/yourls