Vulnerability · Published Sep 15, 2021 · Assigned by @huntrdev
CVE-2021-3783Cross-site Scripting (XSS) - Reflected in yourls/yourls
Medium 6.6
In plain English
A medium-severity cross-site scripting in yourls/yourls from yourls. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 53% of all known vulnerabilities).
Severity (CVSS 3.0)6.6Medium
Exploit odds (30 days)0.7%top 46.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
yourls is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | yourls/yourls | no fix listed | GHSA-cpq8-x35g-m439 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yourls | yourls/yourls | unspecified – through 1.8.2 |
Weakness: CWE-79 · Vector: CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- https://huntr.dev/bounties/b688e553-d0d9-4ddf-95a3-ff4b78004984 x_refsource_CONFIRM
- https://github.com/yourls/yourls/commit/94f6bab91182142c96ff11f481585b445449efd4 x_refsource_MISC