Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors: known security problems
7 known security problems reported for this WordPress plugin, with the affected versions, the fix and what to do.
Updated
In short
There are 7 known security problems on this page. Each one has a fixed version. Updating to version 4.18.0 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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Anyone with an account on your site, even a basic one 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 4.17.0
- Fixed in
- 4.18.0
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.18.0 or newer.
- Official ID
- CVE-2026-111592
- Report title
- Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors <= 4.17.0 - Authenticated (Subscriber+) Stored Cross-Site Scripting via display_name profile-sync into author term name
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site 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 4.15.0
- Fixed in
- 4.16.0
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.16.0 or newer.
- Official ID
- CVE-2026-85657
- Report title
- Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors <= 4.15.0 - Authenticated (Author+) Stored Cross-Site Scripting via 'profile_fields_user_email_value_prefix' Parameter
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 4.10.1)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.10.1
- Fixed in
- 4.11.0
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.11.0 or newer.
- Official ID
- CVE-2026-25309
- Report title
- Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors <= 4.10.1 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone could do things on your site they should not be allowed to (up to and including 4.10.1) (2)
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.10.1
- Fixed in
- 4.11.0
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.11.0 or newer.
- Official ID
- CVE-2026-25330
- Report title
- PublishPress Authors <= 4.10.1 - Missing Authorization
- First reported
- Sources
- Wordfence, seen
Someone with a contributor account on your site could read or delete private files on your server
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.7.5
- Fixed in
- 4.7.6
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.7.6 or newer.
- Official ID
- CVE-2025-47496
- Report title
- PublishPress Authors <= 4.7.5 - Authenticated (Contributor+) Local File Inclusion
- First reported
- Sources
- Wordfence, seen
Someone who already has an admin account could read or change the data in your site’s database
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.7.3
- Fixed in
- 4.7.4
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.7.4 or newer.
- Official ID
- CVE-2025-26886
- Report title
- PublishPress Authors <= 4.7.3 - Authenticated (Administrator+) SQL Injection
- First reported
- Sources
- Wordfence, seen
Someone with an author account on your site could take over your site as an admin
A trusted security source confirmed it. If your site has an affected version, fix it this week.
- Affected versions
- Up to and including 4.7.1
- Fixed in
- 4.7.2
- What to do
- If your site has an affected version, update Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors to version 4.7.2 or newer.
- Official ID
- CVE-2024-9215
- Report title
- Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors <= 4.7.1 - Insecure Direct Object Reference to Authenticated (Author+) Arbitrary User Email Update and Account Takeover
- 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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