Gutenberg: known security problems
6 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 6 known security problems on this page. Each one has a fixed version. Updating to version 21.9.0 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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Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 21.8.2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 21.8.2
- Fixed in
- 21.9.0
- What to do
- If your site has an affected version, update Gutenberg to version 21.9.0 or newer.
- Official ID
- CVE-2025-64354
- Report title
- Gutenberg <= 21.8.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 18.6.0)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 18.6.0
- Fixed in
- 18.6.1
- What to do
- If your site has an affected version, update Gutenberg to version 18.6.1 or newer.
- Official ID
- CVE-2024-31111
- Report title
- WordPress Core < 6.5.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Template Part Block
- First reported
- Sources
- Wordfence, seen
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
- From 12.9.0 up to and including 18.0.0
- Fixed in
- 18.01
- What to do
- If your site has an affected version, update Gutenberg to version 18.01 or newer.
- Report title
- Gutenberg 12.9.0 - 18.0.0 - Unauthenticated & Authenticated (Contributor+) Stored Cross-Site Scripting via Avatar Block
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could plant harmful code that runs for your visitors or admins (up to and including 16.8.0)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 16.8.0
- Fixed in
- 16.8.1
- What to do
- If your site has an affected version, update Gutenberg to version 16.8.1 or newer.
- Official ID
- CVE-2023-38000
- Report title
- WordPress Core 5.9-6.3.1 - Authenticated(Contributor+) Stored Cross-Site Scripting via Navigation Attributes
- First reported
- Sources
- Wordfence, seen
Someone 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 14.3.0
- Fixed in
- 14.3.1
- What to do
- If your site has an affected version, update Gutenberg to version 14.3.1 or newer.
- Official ID
- CVE-2022-43500
- Report title
- WordPress Core < 6.0.3 & Gutenberg < 14.3.1 - Authenticated Cross-Site Scripting in Various Blocks
- First reported
- Sources
- Wordfence, seen
Someone could use it to harm your site
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Before 12.7.2
- Fixed in
- 12.7.2
- What to do
- If your site has an affected version, update Gutenberg to version 12.7.2 or newer.
- Report title
- WordPress Core < 5.9.2 & Gutenberg < 12.7.2 - Prototype Pollution via Block Editor
- 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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