Auth bypass in Servisnet Tessa

CVE-2022-22831

An issue was discovered in Servisnet Tessa 0.0.2. An attacker can add a new sysadmin user via a manipulation of the Authorization HTTP header.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.114 (95.9th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-22831: held from 0.114 to 0.114.

EPSS over last 30 days · oldest: 0.114 · newest: 0.114 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-22831?
CVE-2022-22831 is a critical-severity vulnerability in Servisnet Tessa, classified under Improper Authentication. CVSS score: 9.8/10. Published 2022-02-06.
How severe is CVE-2022-22831?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-22831 known to be exploited?
19 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.