HomeWordPress vulnerabilitiesCo-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors
Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors vulnerabilities
Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors has 2 known vulnerabilities in this database. The most recent published record is dated 15 Sep 2026.
- Known vulnerabilities
- 2
- Active installs
- 20,000+
- Latest version
- 4.17.0
- Last updated
- 23 Sep 2026
- Most recent
- 15 Sep 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Cross-site scripting (XSS) CVE-2026-85657 | Medium 5.4 | Up to 4.15.0 | Fixed in a later version (latest 4.17.0) | 15 Sep 2026 |
| Privilege escalation CVE-2024-9215 | High 8.8 | Up to 4.7.1 | Fixed in a later version (latest 4.17.0) | 17 Oct 2024 |
Read the published descriptions
- CVE-2026-85657, 15 Sep 2026
- The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘profile_fields_user_email_value_prefix’ parameter in all versions up to, and including, 4.15.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user clicks on a link. CVE record
- CVE-2024-9215, 17 Oct 2024
- The Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors plugin for WordPress is vulnerable to Insecure Direct Object Reference to Privilege Escalation/Account Takeover in all versions up to, and including, 4.7.1 via the action_edited_author() due to missing validation on the 'authors-user_id' user controlled key. This makes it possible for authenticated attackers, with Author-level access and above, to update arbitrary user accounts email addresses, including administrators, which can then be leveraged to reset that user's account password and gain access. CVE record
What to do if you run Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors
If you run Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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