EUVD-2026-64250
GHSA-2f2g-3f4j-x4vf
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
PR:N confirmed by nopriv AJAX hook; C upgraded to L from official C:N because arbitrary shortcode execution can expose data via co-installed shortcodes.
Primary rating from Vendor (Wordfence).
CVSS VectorVendor: Wordfence
Lifecycle Timeline
2DescriptionCVE.org
The The kk Star Ratings - Rate Post & Collect User Feedbacks plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 5.4.10.3. This is due to the software allowing users to execute an action that does not properly validate the 'payload' value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.
AnalysisAI
Unauthenticated shortcode injection in the kk Star Ratings - Rate Post & Collect User Feedbacks WordPress plugin (all versions through 5.4.10.3) allows any remote, unauthenticated attacker to execute arbitrary WordPress shortcodes by supplying a crafted payload to the plugin's AJAX handler. The flaw exists because the wp_ajax_kk-star-ratings action passes a user-controlled 'payload' parameter directly to do_shortcode() without allowlisting or sanitizing which shortcode tags are permitted. …
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Attack ChainAIDerived
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Vulnerability AssessmentAI
| Exploitation | The target WordPress site must have the kk Star Ratings - Rate Post & Collect User Feedbacks plugin installed and active in any version up to and including 5.4.10.3. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The official CVSS 5.3 Medium score (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N) reflects zero-friction unauthenticated network exploitation with a conservative integrity-only impact. … 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 the kk Star Ratings plugin to a version above 5.4.10.3 immediately; a code fix has been committed to the WordPress plugin SVN repository as changeset 3474555 (https://plugins.trac.wordpress.org/changeset/3474555/), though the exact release version number incorporating this fix is not explicitly stated in the available data - verify the current version in the WordPress plugin directory and update to the latest available release. … Detailed patch versions, workarounds, and compensating controls in full report. |
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