Vulnerability · Published Sep 28, 2022 · Assigned by mitre

CVE-2022-30935

Critical 9.1

In plain English

A critical-severity weak randomness 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 1.4% (higher than 73% of all known vulnerabilities).

Severity (CVSS 3.1)9.1Critical

Exploit odds (30 days)1.4%top 26.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An authorization bypass in b2evolution allows remote, unauthenticated attackers to predict password reset tokens for any user through the use of a bad randomness function. This allows the attacker to get valid sessions for arbitrary users, and optionally reset their password. Tested and confirmed in a default installation of version 7.2.3. Earlier versions are affected, possibly earlier major versions as well.

Affected products (as reported)

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

Weakness: CWE-330 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/b2evolution/b2evolution/blob/master/inc/_core/_misc.funcs.php#L5955 x_refsource_MISC
https://github.com/b2evolution/b2evolution/issues/114 x_refsource_MISC
https://b2evolution.net/downloads/7-2-5-stable x_refsource_MISC