CVE-2022-4120

Stop Spammers vulnerability

CVSS

9.8

EPSS

18.1%

EPSS pct

97th

Exploited

No known

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

Affected vendor

Trumani

Affected product

Stop Spammers

CVSS vector

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

Published

2022-12-26

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 18.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2022-4120

Confirm whether Trumani Stop Spammers is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-4120.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-4120

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-4120 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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