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TI-2021-06804 Aliases CVE-2021-24517GHSA-fp6q-wmwj-3m9p

Stop Spammers Security < 2021.18 - Authenticated Stored XSS

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

The Stop Spammers Security | Block Spam Users, Comments, Forms WordPress plugin before 2021.18 does not escape some of its settings, allowing high privilege users such as admin to set Cross-Site Scripting payloads in them even when the unfiltered_html capability is disallowed

Why it matters now

EPSS 0.00624 50th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Stop Spammers Security | Block Spam Users, Comments, Forms (Unknown): 2021.18

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownStop Spammers Security | Block Spam Users, Comments, Forms2021.18 to before 2021.182021.18Patch availableCNA
  • Stop Spammers Security | Block Spam Users, Comments, Forms VendorUnknown Affected 2021.18 to before 2021.18 Fixed in 2021.18 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:trumani:stop_spammers:*:*:*:*:*:wordpress:*:*before 2021.18VulnerableTrumani
  • cpe:2.3:a:trumani:stop_spammers:*:*:*:*:*:wordpress:*:* Versions before 2021.18 Vulnerable ·Trumani

Remediation

  • Fix · CNA Stop Spammers Security | Block Spam Users, Comments, Forms (Unknown) Fixed in 2021.18

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-24517
  2. 2026-10-03 Alias added: GHSA-fp6q-wmwj-3m9p
  3. 2026-11-04 EPSS moved to the 50th–90th percentile

References

Exploit 1

  • TI-2022-03767 Stop Spammers Security < 2022.6 - Unauthenticated PHP Object Injection CVSS 3.1CRITICAL 9.8
  • 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

Sources

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