Vulnerability in Trumani Stop Spammers

CVE-2022-4120

The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2022.6 passes base64 encoded user input to the unserialize() PHP function when CAPTCHA are used as second challenge, which could lead to PHP Object injection if a plugin installed on the blog has a suitable gadget chain

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: 0.181 (97.1th percentile), scored .

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.1% 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-2022-4120: held from 0.181 to 0.181.

EPSS over last 30 days · oldest: 0.181 · newest: 0.181 · change: 0.000

Affected products

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-4120?
CVE-2022-4120 is a critical-severity vulnerability in Trumani Stop Spammers, classified under CWE-502 DESERIALIZATION OF UNTRUSTED DATA. CVSS score: 9.8/10. Published 2022-12-26.
How severe is CVE-2022-4120?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-4120 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.