What’s Vulnerable › Vulnerabilities

CVE-2021-27821

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-05-25 · updated 2026-07-09
• Weakness: CWE-79

Description

The Web Interface for OpenWRT LuCI version 19.07 and lower has been discovered to have a cross-site scripting vulnerability.

Affected products

• openwrt luci: through 19.07.0

References

• https://openwrt.org/advisory/start
• https://openwrt.org/releases/19.07/start

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