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TI-2022-03767 Aliases CVE-2022-4120GHSA-7x93-m29h-6j9q

Stop Spammers Security < 2022.6 - Unauthenticated PHP Object Injection

Priority HIGH 82Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.18121 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix Fixed Stop Spammers Security | Block Spam Users, Comments, Forms (Unknown): 2022.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownStop Spammers Security | Block Spam Users, Comments, Formsbefore 2022.62022.6Patch availableCNA
  • Stop Spammers Security | Block Spam Users, Comments, Forms VendorUnknown Affected before 2022.6 Fixed in 2022.6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:trumani:stop_spammers:*:*:*:*:*:wordpress:*:*before 2022.6VulnerableTrumani
  • cpe:2.3:a:trumani:stop_spammers:*:*:*:*:*:wordpress:*:* Versions before 2022.6 Vulnerable ·Trumani

Remediation

  • Fix · CNA Stop Spammers Security | Block Spam Users, Comments, Forms (Unknown) Fixed in 2022.6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4120
  2. 2026-10-03 Alias added: GHSA-7x93-m29h-6j9q

References

Exploit 1

  • TI-2023-02335 Stop Spammers Security < 2023 - Reflected XSS CVSS 3.1MEDIUM 6.1
  • TI-2023-02336 Stop Spammers Security < 2023 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
  • TI-2021-06537 Stop Spammers < 2021.9 - Reflected Cross-Site Scripting (XSS) CVSS 3.1MEDIUM 6.1
  • TI-2021-06804 Stop Spammers Security < 2021.18 - Authenticated Stored XSS CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences