EUVD-2026-78244
GHSA-786g-g6vf-28p6
Severity by source
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Author-level account required (PR:L), victim click needed (UI:R), scope changes to browser (S:C); no availability impact for stored XSS.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Stored XSS in the PublishPress Authors WordPress plugin (all versions through 4.15.0) allows authenticated users holding Author-level access or above to inject persistent malicious scripts via the profile_fields_user_email_value_prefix parameter in author box configuration. The injected payload executes in the browser of any site user who clicks the affected author box link, enabling session hijacking, credential theft, or admin account takeover through the browser context of higher-privileged victims. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires a valid WordPress account with at minimum Author-level role on the target site; Contributor-level or higher also applies per the disclosure. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 5.4 (Medium) score is well-calibrated for this vulnerability class. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade the PublishPress Authors plugin to a version above 4.15.0; the exact patched release should be verified against the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/d4cc9537-879c-4c12-8b76-60241b7a3420 and the WordPress.org plugin repository, as no specific fix version is confirmed in the provided data. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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