Stop Spammers Classic: known security problems
9 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 9 known security problems on this page. Each one has a fixed version. Updating to version 2026.4 or newer covers every fixed problem listed here.
Based on public reports. Check the plugin’s changelog. Watchfox AI may be wrong.
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A stranger could plant harmful code that runs for your visitors or admins
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2026.3
- Fixed in
- 2026.4
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2026.4 or newer.
- Official ID
- CVE-2026-48876
- Report title
- Stop Spammers Classic <= 2026.3 - Unauthenticated Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing (up to and including 2026.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2026.1
- Fixed in
- 2026.2
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2026.2 or newer.
- Official ID
- CVE-2025-14795
- Report title
- Stop Spammers Classic <= 2026.1 - Cross-Site Request Forgery via Email Allowlist
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing (up to and including 2024.7)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2024.7
- Fixed in
- 2025
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2025 or newer.
- Official ID
- CVE-2025-2935
- Report title
- Anti-Spam: Spam Protection | Block Spam Users, Comments, Forms <= 2024.7 - Cross-Site Request Forgery to Multiple Administrative Actions
- First reported
- Sources
- Wordfence, seen
Someone could trick a logged-in admin into changing settings without knowing (up to and including 2024.4)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2024.4
- Fixed in
- 2024.5
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2024.5 or newer.
- Official ID
- CVE-2023-7065
- Report title
- Stop Spammers Security | Block Spam Users, Comments, Forms <= 2024.4 - Cross-Site Request Forgery (CSRF) via sfs_process
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 2022.6)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2022.6
- Fixed in
- 2023
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2023 or newer.
- Official ID
- CVE-2023-2488
- Report title
- Stop Spammers Security <= 2022.6 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (up to and including 2022.6) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2022.6
- Fixed in
- 2023
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2023 or newer.
- Official ID
- CVE-2023-2489
- Report title
- Stop Spammers Security <= 2022.6 - Authenticated (Admin+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
A stranger could in some setups, take over your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 2022.5
- Fixed in
- 2022.6
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2022.6 or newer.
- Official ID
- CVE-2022-4120
- Report title
- Stop Spammers Security <= 2022.5 - Unauthenticated PHP Object Injection
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2021.18)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2021.18
- Fixed in
- 2021.18
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2021.18 or newer.
- Official ID
- CVE-2021-24517
- Report title
- Stop Spammers Security <= 2021.17 - Authenticated (Admin+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone could plant harmful code that runs for your visitors or admins (before 2021.9)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 2021.9
- Fixed in
- 2021.9
- What to do
- If your site has an affected version, update Stop Spammers Classic to version 2021.9 or newer.
- Official ID
- CVE-2021-24245
- Report title
- Stop Spammers <= 2021.8 - Reflected Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Where this comes from
We collect these reports from public security sources and rewrite them in plain words. Each problem shows its sources and the date we first saw it. This page never says whether your own site is affected: only a check of your site’s versions can tell.
Get an email when your site is affected.
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