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CVE-2022-4120

CRITICALCVSS 9.8/10EPSS 18.12%

Last modified

CVE-2022-4120 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 18.12% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1
9.8/10

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

EPSS Probability
18.12%

96.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
TrumaniStop Spammers< 2022.6

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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
How severe is CVE-2022-4120?
CVE-2022-4120 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 18.12% probability of exploitation in the next 30 days.
How do I fix CVE-2022-4120?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-4120?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST