CVE-2021-43810

Cross-site Scripting (XSS) when redirect an url

Description

Admidio is a free open source user management system for websites of organizations and groups. A cross-site scripting vulnerability is present in Admidio prior to version 4.0.12. The Reflected XSS vulnerability occurs because redirect.php does not properly validate the value of the url parameter. Through this vulnerability, an attacker is capable to execute malicious scripts. This issue is patched in version 4.0.12.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 57.11% Top 5%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: Admidio admidio
Published at:
Updated at:

References

Link Tags
https://github.com/Admidio/admidio/security/advisories/GHSA-3qgf-qgc3-42hh third party advisory
https://github.com/Admidio/admidio/commit/c043267d362f7813543cc2785119bf3e3e54fe21 third party advisory patch
https://github.com/Admidio/admidio/commit/fcb0609abc1d2f65bc1377866bd678e5d891404b third party advisory patch
https://github.com/Admidio/admidio/releases/tag/v4.0.12 patch third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2021-43810?
CVE-2021-43810 has been scored as a high severity vulnerability.
How to fix CVE-2021-43810?
To fix CVE-2021-43810, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-43810 being actively exploited in the wild?
It is possible that CVE-2021-43810 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~57% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-43810?
CVE-2021-43810 affects Admidio admidio.
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