EUVD-2026-89899
GHSA-q7j8-v993-6ff3
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Unauthenticated remote XSS (PR:N) requiring victim click (UI:R); script crosses into browser origin (S:C) with limited session-level C/I/A impact.
Primary rating from Vendor (Patchstack).
CVSS VectorVendor: Patchstack
Lifecycle Timeline
4DescriptionCVE.org
Unauthenticated Cross Site Scripting (XSS) in ThemeREX Addons < 2.45.0 versions.
AnalysisAI
Reflected cross-site scripting in the ThemeREX Addons WordPress plugin affects all versions below 2.45.0, allowing an unauthenticated remote attacker to execute arbitrary JavaScript in a victim's browser within the affected site's origin. Exploitation requires user interaction (CVSS vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L, base score 7.1): the attacker must lure a victim to a crafted link or attacker-influenced page that triggers the injected payload, and success also depends on the site lacking a WAF or the patched plugin. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires an affected WordPress site running ThemeREX Addons plugin below version 2.45.0 and hinges on user interaction (UI:R): the attacker must induce a victim to click a crafted link or visit an attacker-influenced page that triggers the reflected payload. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is an unauthenticated Cross-Site Scripting flaw (CWE-79) in the ThemeREX Addons WordPress plugin, scored CVSS 7.1 with vector AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. … 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 | Update ThemeREX Addons to version 2.45.0 or later - this is the vendor-released fix and the boundary documented in the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/trx_addons/vulnerability/wordpress-themerex-addons-plugin-2-45-0-cross-site-scripting-xss-vulnerability-2); patching is strongly preferred since it removes the root cause. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory all WordPress sites using the ThemeREX Addons plugin and confirm whether any version below 2.45.0 is installed; if the plugin is not essential, disable it immediately, and if it must remain active, enforce strict input validation and deploy emergency WAF rules to block reflected XSS patterns. …
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External POC / Exploit Code
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