Vulnerability · Published Dec 7, 2021 · Assigned by GitHub_M

CVE-2021-43810Cross-site Scripting (XSS) when redirect an url

High 8.8

In plain English

A high-severity cross-site scripting in admidio from Admidio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.1% (higher than 92% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)5.1%top 7.6% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack tooling1Nuclei

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Admidio	admidio	< 4.0.12

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://github.com/Admidio/admidio/security/advisories/GHSA-3qgf-qgc3-42hh x_refsource_CONFIRM
https://github.com/Admidio/admidio/commit/c043267d362f7813543cc2785119bf3e3e54fe21 x_refsource_MISC
https://github.com/Admidio/admidio/commit/fcb0609abc1d2f65bc1377866bd678e5d891404b x_refsource_MISC
https://github.com/Admidio/admidio/releases/tag/v4.0.12 x_refsource_MISC