CVE-2021-3111

23Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendepss 3.0%

from disclosure to weapon80 days

Published on NVDJan 8

1st PoC+80d

exploitation probability

3.0%top 14% of all CVEs

observed exploitation

nono source reports it

3 public exploit(s)

The Express Entries Dashboard in Concrete5 8.5.4 allows stored XSS via the name field of a new data object at an index.php/dashboard/express/entries/view/ URI.

Affected products

n/a · n/a

public PoCs found — 3

exploitdbwww.exploit-db.com/exploits/49721unverified cve_referencepacketstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.htmlunverified cve_referencepacketstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.htmlunverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

http://packetstormsecurity.com/files/161600/Concrete5-8.5.4-Cross-Site-Scripting.html http://packetstormsecurity.com/files/161997/Concrete5-8.5.4-Cross-Site-Scripting.html https://documentation.concrete5.org/developers/introduction/version-history https://documentation.concrete5.org/developers/introduction/version-history/855-release-notes https://github.com/Quadron-Research-Lab/CVE/blob/main/CVE-2021-3111.pdf