[feehi/feehicms] FeehiCMS vulnerable to Cross Site Scripting

Cross Site Scripting (XSS) vulnerability in FeehiCMS 2.0.8 allows remote attackers to run arbitrary code via tha lang attribute of an html tag.

References

• https://nvd.nist.gov/vuln/detail/CVE-2020-20589
• https://github.com/liufee/cms/issues/45
• https://github.com/advisories/GHSA-pwh3-3pcm-6vjh