What’s Vulnerable › Vulnerabilities

CVE-2021-28857

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-15 · updated 2026-06-17
• Weakness: CWE-522

Description

TP-Link's TL-WPA4220 4.0.2 Build 20180308 Rel.37064 username and password are sent via the cookie.

Affected products

• TP-Link Tl-Wpa4220 Firmware: 4.0.2-build_20180308_rel.37064

References

• https://yunus-shn.medium.com/tp-links-tl-wpa4220-v4-0-cleartext-credentials-in-cookie-7516a2649394
• https://yunus-shn.medium.com/tp-links-tl-wpa4220-v4-0-cleartext-credentials-in-cookie-7516a2649394

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