VULNERABILITY INTELLIGENCE

CVE-2021-22948

CVSS score7.1 HIGH

EPSS probability2.71%

CISA KEVNot currently listed

Published2021-09-23

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

Description

Vulnerability in the generation of session IDs in revive-adserver < 5.3.0, based on the cryptographically insecure uniqid() PHP function. Under some circumstances, an attacker could theoretically be able to brute force session IDs in order to take over a specific account.

Weakness classification

support@hackerone.com: CWE-79
nvd@nist.gov: CWE-338

Primary references

support@hackerone.com — Exploit, Third Party Advisory
support@hackerone.com — Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory