Vulnerability · Published Oct 6, 2020 · Assigned by mitre

CVE-2020-26574

Critical 9.6

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.1% (higher than 82% of all known vulnerabilities).

Severity (CVSS NVD)9.6Critical

Exploit odds (30 days)2.1%top 18.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Leostream Connection Broker 8.2.x is affected by stored XSS. An unauthenticated attacker can inject arbitrary JavaScript code via the webquery.pl User-Agent HTTP header. It is rendered by the admins the next time they log in. The JavaScript injected can be used to force the admin to upload a malicious Perl script that will be executed as root via libMisc::browser_client. NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://adepts.of0x.cc/leostream-xss-to-rce/ x_refsource_MISC
https://www.leostream.com/resources/product-lifecycle/ x_refsource_MISC